General Science
General Science Mcqs section is full of most important questions and hand picked from past papers and category wise prepared like, Food, Solar System, Plant Cell, Environment and other related to General Science. So start preparation for exams and get 100% score by preparing on Mcqs Test Prep.
General Science MCQs Class Four To Eight
Body Parts General Science
Which is the central control system of the body?
a) Heart
b) Lungs
c) Brain
d) Liver
Explanation: The brain controls all voluntary and involuntary actions in the body, making it the central control system.
A headache is not a pain of:
a) Brain
b) Bones
c) Nerves
d) Muscles
Explanation: A headache is caused by issues in the nerves, blood vessels, or muscles, but not the bones of the head.
Most headaches happen in the:
a) Skull
b) Muscles and blood vessels
c) Bones
d) Eyes
Explanation: Headaches are primarily caused by changes in the blood vessels or tension in muscles surrounding the brain.
Which part of the body stores the food?
a) Mouth
b) Stomach
c) Intestines
d) Esophagus
Explanation: The stomach temporarily stores food and begins digestion.
The stomach passes the liquid mixture to which part?
a) Esophagus
b) Small intestine
c) Large intestine
d) Liver
Explanation: The stomach churns food into a liquid and sends it to the small intestine for nutrient absorption.
Which part absorbs all nutrients of the food?
a) Stomach
b) Liver
c) Large intestine
d) Small intestine
Explanation: The small intestine absorbs the majority of nutrients from digested food.
How many primary teeth are there?
a) 32
b) 18
c) 20
d) 24
Explanation: Children have 20 primary (baby) teeth that are eventually replaced by permanent teeth.
How many permanent teeth do adults have?
a) 20
b) 32
c) 28
d) 24
Explanation: Adults typically have 32 permanent teeth, including wisdom teeth.
Which part of the body helps elephants control their temperature?
a) Trunk
b) Ears
c) Tail
d) Feet
Explanation: Elephants use their large ears to regulate body temperature by dissipating heat.
Which elephants have larger ears than Asian elephants?
a) Forest elephants
b) African elephants
c) Indian elephants
d) Borneo elephants
Explanation: African elephants have significantly larger ears compared to Asian elephants to help with heat dissipation.
The part of the ear which is visible is called:
a) Cochlea
b) Eardrum
c) Pinna
d) Auditory nerve
Explanation: The pinna is the external, visible part of the ear that captures sound waves.
Which are the breathing centers of the body?
a) Liver
b) Heart
c) Lungs
d) Kidneys
Explanation: The lungs are responsible for gas exchange, making them the breathing centers of the body.
Where are the lungs of humans located?
a) Abdominal cavity
b) Thoracic cavity
c) Pelvic cavity
d) Cranial cavity
Explanation: The lungs are located in the thoracic cavity, protected by the rib cage.
Lungs are protected by:
a) Spine
b) Skin
c) Diaphragm
d) Rib cage
Explanation: The rib cage surrounds and protects the lungs from physical damage.
Where does the inhaled air enter?
a) Lungs
b) Heart
c) Stomach
d) Esophagus
Explanation: Air is inhaled into the lungs, where oxygen is absorbed into the bloodstream.
The windpipe where clean air enters is known as:
a) Esophagus
b) Trachea
c) Larynx
d) Bronchi
Explanation: The trachea is the main airway that carries air to the lungs.
Into how many small tubes is the trachea divided?
a) Four
b) Five
c) Two
d) Three
Explanation: The trachea splits into two bronchial tubes, leading to each lung.
Each bronchial tube is joined with:
a) Diaphragm
b) Trachea
c) Lungs
d) Heart
Explanation: The bronchial tubes branch into each lung for air distribution.
Asthma is the main disorder of the:
a) Heart
b) Liver
c) Stomach
d) Respiratory system
Explanation: Asthma affects the airways in the respiratory system, causing difficulty in breathing.
Which is the pumping station of the body?
a) Brain
b) Heart
c) Lungs
d) Liver
Explanation: The heart pumps blood throughout the body, acting as the body’s pumping station.
The average human heart beats about how many times in a minute?
a) 60
b) 72
c) 80
d) 100
Explanation: The average resting heart rate is about 72 beats per minute for adults.
How many bones are there in the human body?
a) 200
b) 206
c) 210
d) 198
Explanation: The adult human body contains 206 bones.
Places where two bones meet are called:
a) Joints
b) Cartilage
c) Ligaments
d) Muscles
Explanation: Joints are the points where two or more bones meet, allowing for movement.
The outer layer of the body is called:
a) Dermis
b) Muscle
c) Skin
d) Epidermis
Explanation: The skin forms the protective outer layer of the human body.
The largest outer part of the body is:
a) Liver
b) Brain
c) Skin
d) Lungs
Explanation: Skin is the largest organ, covering the entire surface of the body.
What is the thickness of human skin?
a) 0.5–5 mm
b) 2–3 mm
c) 1–2 cm
d) 0.2 mm
Explanation: Human skin varies in thickness from 0.5 mm on the eyelids to about 5 mm on the soles of the feet.
The part of the body that gives you shape is:
a) Muscles
b) Skin
c) Skeleton
d) Fat
Explanation: The skeleton provides the framework and structure of the human body.
Characteristics And Needs of Living Things MCQs
The characteristics that an organism inherits from its parents are called?
a) Genes
b) Features
c) Chromosomes
d) Traits
Explanation: Traits are specific characteristics or attributes passed from parents to offspring through genes.
The life cycle of a butterfly is?
a) Eggs-larva-adult
b) Larva-pupa-adult
c) Eggs-pupa-adult
d) Eggs-larva-pupa-adult
Explanation: A butterfly undergoes complete metamorphosis in four stages: eggs, larva (caterpillar), pupa (chrysalis), and adult.
The larva of a butterfly is also called?
a) Nymph
b) Chrysalis
c) Maggot
d) Caterpillar
Explanation: The larva stage of a butterfly is known as a caterpillar, which feeds extensively before transitioning to the pupa stage.
The pupa of a butterfly is also called?
a) Cocoon
b) Chrysalis
c) Larva
d) Nymph
Explanation: During the pupa stage, a butterfly is enclosed in a protective casing called a chrysalis, where it undergoes transformation into an adult butterfly.
The life cycle of a frog is?
a) Eggs-tadpole-froglet
b) Spawn-larva-adult
c) Spawn-tadpole-frog
d) Eggs-pupa-adult
Explanation: Frogs undergo a three-stage life cycle starting as spawn (eggs), hatching into tadpoles, and maturing into frogs.
Frog eggs are also called?
a) Larva
b) Pupa
c) Spawn
d) Fry
Explanation: Frog eggs, which are laid in water, are commonly referred to as spawn.
The spawn of a frog develops into?
a) Froglet
b) Nymph
c) Tadpole
d) Pupa
Explanation: Frog spawn hatches into tadpoles, the larval stage of a frog’s development.
The tadpole develops into?
a) Spawn
b) Larva
c) Froglet
d) Frog
Explanation: Tadpoles gradually transform into frogs, growing legs and losing their tails as they mature.
Food And Health General Science MCQs
Which are the major sources of quick energy for the body?
a) Proteins
b) Carbohydrates
c) Fats
d) Vitamins
Explanation: Carbohydrates are the body’s main source of quick energy, providing glucose for immediate fuel.
Which are the main sources of body growth?
a) Carbohydrates
b) Fats
c) Proteins
d) Vitamins
Explanation: Proteins are essential for body growth as they help build and repair tissues.
Which main sources protect the body from diseases?
a) Carbohydrates
b) Vitamins
c) Fats
d) Proteins
Explanation: Vitamins, especially vitamin C and vitamin A, help protect the body from diseases and boost the immune system.
Vitamins are mainly found in?
a) Meat
b) Grains
c) Fruits and vegetables
d) Dairy products
Explanation: Vitamins are primarily found in fruits and vegetables, which are rich in essential nutrients.
Minerals are mainly found in?
a) Fruits and vegetables
b) Grains
c) Dairy products
d) Meat
Explanation: Minerals are found in various foods, including fruits and vegetables, which provide essential nutrients like iron, calcium, and potassium.
What do milk, meat, eggs, and pulses provide?
a) Proteins
b) Carbohydrates
c) Fats
d) Vitamins
Explanation: Milk, meat, eggs, and pulses are rich in proteins, which are essential for growth and repair of body tissues.
Fats are found in?
a) Fruits
b) Grains
c) Oils and butter
d) Vegetables
Explanation: Fats are found in oils, butter, and other fatty foods and are important for energy storage and cell function.
Vitamin A prevents a disease called?
a) Night blindness
b) Rickets
c) Scurvy
d) Pellagra
Explanation: Vitamin A is essential for maintaining healthy vision and preventing night blindness.
Vitamin B complex prevents a disease called?
a) Rickets
b) Beriberi
c) Scurvy
d) Sickle cell anemia
Explanation: Vitamin B complex, especially B1 (thiamine), helps prevent beriberi, a disease affecting the nervous and cardiovascular systems.
Which vitamin strengthens the immune system?
a) Vitamin C
b) Vitamin D
c) Vitamin A
d) Vitamin B
Explanation: Vitamin C is known for its role in boosting the immune system and helping the body fight infections.
Vitamin C prevents a disease called?
a) Pellagra
b) Scurvy
c) Beriberi
d) Night blindness
Explanation: Vitamin C prevents scurvy, a disease that causes weakness, gum disease, and skin problems.
Which vitamin strengthens bones and teeth?
a) Vitamin D
b) Vitamin A
c) Vitamin K
d) Vitamin C
Explanation: Vitamin D helps the body absorb calcium, which is essential for strong bones and teeth.
Vitamin D prevents a disease called?
a) Scurvy
b) Rickets
c) Pellagra
d) Night blindness
Explanation: Vitamin D deficiency can cause rickets, a disease that weakens bones in children.
Which are the building blocks of the body?
a) Fats
b) Proteins
c) Carbohydrates
d) Vitamins
Explanation: Proteins are the building blocks of the body, helping in growth, tissue repair, and muscle building.
Flesh of the body is made up of?
a) Blood
b) Muscles
c) Bones
d) Fat
Explanation: The flesh of the body refers to muscles, which make up the bulk of body mass along with fat and connective tissues.
What makes the red blood cells?
a) Iron
b) Hemoglobin
c) Calcium
d) Magnesium
Explanation: Hemoglobin is the protein in red blood cells that carries oxygen throughout the body.
Which disease is caused by a deficiency of iron?
a) Anemia
b) Rickets
c) Scurvy
d) Osteoporosis
Explanation: Iron deficiency leads to anemia, a condition where the blood doesn’t have enough healthy red blood cells.
Deficiency of calcium causes?
a) Scurvy
b) Rickets
c) Anemia
d) Beriberi
Explanation: Calcium deficiency can lead to rickets, a disease that causes weak bones and skeletal deformities in children.
Deficiency of copper causes?
a) Osteoporosis
b) Anemia
c) Scorbutic dermatitis
d) Wilson’s disease
Explanation: Copper deficiency can lead to anemia and may affect the body’s ability to absorb iron properly.
Deficiency of magnesium causes?
a) Osteoporosis
b) Muscle cramps
c) Scurvy
d) Rickets
Explanation: Magnesium deficiency often leads to muscle cramps and spasms due to its role in muscle and nerve function.
Deficiency of protein causes?
a) Rickets
b) Kwashiorkor
c) Scurvy
d) Marasmus
Explanation: Protein deficiency leads to Kwashiorkor, a severe form of malnutrition characterized by swelling and liver problems.
Weight loss in children is due to?
a) Anemia
b) Malnutrition
c) Rickets
d) Scurvy
Explanation: Malnutrition, including insufficient calorie intake and improper nutrient absorption, leads to weight loss in children.
Marasmus develops due to lack of?
a) Proteins
b) Calories
c) Iron
d) Vitamins
Explanation: Marasmus is caused by a severe lack of calories and energy, leading to extreme weight loss and muscle wasting.
Kwashiorkor disease is caused by a deficiency of?
a) Calcium
b) Protein
c) Vitamin C
d) Iron
Explanation: Kwashiorkor results from protein deficiency, often causing swelling, liver problems, and delayed growth.
Keeping oneself clean is called?
a) Hygiene
b) Health
c) Nutrition
d) Exercise
Explanation: Hygiene refers to practices that maintain health and prevent the spread of diseases by keeping the body clean.
Living Things and Their Environment MCQs
The natural world that surrounds living and non-living things is called?
a) Environment
b) Habitat
c) Ecosystem
d) Biome
Explanation: The environment refers to the surroundings that include both living organisms and non-living elements such as air, water, and soil.
What do herbivores eat?
a) Meat
b) Plants
c) Both plants and meat
d) Insects
Explanation: Herbivores are animals that primarily eat plants, including leaves, grasses, and fruits.
What do carnivores eat?
a) Fruits
b) Plants
c) Meat
d) Both plants and meat
Explanation: Carnivores are animals that mainly consume meat from other animals.
What do omnivores eat?
a) Only meat
b) Only plants
c) Both plants and meat
d) Insects and plants
Explanation: Omnivores are animals that eat both plants and meat, such as humans and pigs.
Human beings are?
a) Omnivores
b) Herbivores
c) Carnivores
d) Insectivores
Explanation: Humans are omnivores, as they consume both plant-based foods and animal-based products.
The lowest temperature in laboratory thermometers is?
a) 0°C
b) -10°C
c) -10°C
d) 10°C
Explanation: Laboratory thermometers can measure temperatures as low as -10°C, depending on the thermometer’s range.
The highest temperature in laboratory thermometers is?
a) 100°C
b) 120°C
c) 110°C
d) 150°C
Explanation: Laboratory thermometers typically measure up to 110°C, though some can measure higher temperatures.
Which liquid is used in the clinical thermometer?
a) Water
b) Mercury
c) Alcohol
d) Oil
Explanation: Mercury is used in clinical thermometers because it expands and contracts with temperature changes, allowing precise measurements.
The freezing point of water at the Fahrenheit scale is?
a) 0°F
b) 32°F
c) 100°F
d) 0°C
Explanation: The freezing point of water is 32°F on the Fahrenheit scale.
The boiling point of water at the Fahrenheit scale is?
a) 32°F
b) 212°F
c) 100°F
d) 0°F
Explanation: The boiling point of water is 212°F on the Fahrenheit scale.
How many divisions does the Fahrenheit scale have?
a) 180
b) 100
c) 200
d) 360
Explanation: The Fahrenheit scale has 180 divisions between the freezing point (32°F) and the boiling point (212°F) of water.
Fahrenheit scale on the thermometer is marked from 95°F to?
a) 108°F
b) 100°F
c) 120°F
d) 150°F
Explanation: The Fahrenheit scale typically has a range of temperatures from 95°F to 108°F on a clinical thermometer.
Electricity And Magnetism Science MCQs
The flow of electricity is called?
a) Current
b) Voltage
c) Resistance
d) Power
Explanation: The flow of electricity through a conductor is known as electric current, measured in amperes.
Materials through which electricity can pass are called?
a) Insulators
b) Conductors
c) Resistors
d) Semiconductors
Explanation: Conductors are materials that allow electricity to flow through them, such as metals like copper.
Materials through which electricity cannot pass are called?
a) Insulators
b) Conductors
c) Semiconductors
d) Resistors
Explanation: Insulators are materials that do not allow the flow of electricity, such as rubber, plastic, and wood.
The path through which current passes is called?
a) Circuit
b) Battery
c) Conductor
d) Insulator
Explanation: The path through which current flows is called a circuit. It includes conductors and may also contain other components like resistors and capacitors.
Matter is made up of?
a) Atoms
b) Molecules
c) Protons
d) Electrons
Explanation: Matter is composed of atoms, which are the basic units of elements and molecules.
Organisms that eat the producers are called?
a) Decomposers
b) Primary consumers
c) Secondary consumers
d) Tertiary consumers
Explanation: Primary consumers are organisms that eat producers (like plants), forming the second level in the food chain.
Which are the only primary consumers?
a) Herbivores
b) Carnivores
c) Herbivores
d) Omnivores
Explanation: Primary consumers are herbivores, as they feed directly on producers (plants).
Organisms that eat primary consumers are called?
a) Decomposers
b) Secondary consumers
c) Primary producers
d) Tertiary consumers
Explanation: Secondary consumers eat primary consumers, often carnivores that feed on herbivores.
Which are the only secondary consumers?
a) Producers
b) Herbivores
c) Carnivores
d) Omnivores
Explanation: Secondary consumers are typically carnivores that eat herbivores (primary consumers).
Which are the consumers that eat both herbivores and carnivores?
a) Omnivores
b) Herbivores
c) Carnivores
d) Decomposers
Explanation: Omnivores eat both plant-based foods (herbivores) and animal-based foods (carnivores).
Animals that eat primary and secondary consumers are called?
a) Decomposers
b) Tertiary consumers
c) Tertiary consumers
d) Primary consumers
Explanation: Tertiary consumers are apex predators that eat both primary and secondary consumers.
Organisms that eat all the dead and waste products of producers and consumers are called?
a) Decomposers
b) Producers
c) Consumers
d) Scavengers
Explanation: Decomposers break down dead plants and animals, recycling nutrients back into the ecosystem.
Which is the correct order of levels in a food chain?
a) Producer-consumer-decomposer
b) Producer-decomposer-consumer
c) Consumer-decomposer-producer
d) Consumer-producer-decomposer
Explanation: A typical food chain starts with producers (plants), followed by consumers (herbivores and carnivores), and ends with decomposers that break down organic matter.
Which best describes the frog?
a) Producer
b) Consumer
c) Decomposer
d) Herbivore
Explanation: The frog is a consumer in the food chain as it eats insects and smaller animals.
Which animal is considered as a decomposer?
a) Rabbit
b) Tiger
c) Fungus
d) Elephant
Explanation: Fungi and other decomposers break down dead organic material into simpler substances that can be reused in the ecosystem.
What is the key role of decomposers?
a) To produce food
b) To consume herbivores
c) To break down dead material and recycle nutrients
d) To provide shelter
Explanation: Decomposers play a crucial role in recycling nutrients by breaking down dead organic matter, which is essential for the ecosystem’s sustainability.
Matter and its State Science MCQs
Anything that occupies space and has mass is called?
a) Matter
b) Energy
c) Force
d) Weight
Explanation: Matter is anything that has mass and occupies space. All physical objects are made of matter.
How many states of matter are there?
a) One
b) Two
c) Three
d) Four
Explanation: There are three primary states of matter: solid, liquid, and gas. A fourth state, plasma, also exists under certain conditions.
The amount of space a material object occupies is called?
a) Volume
b) Mass
c) Density
d) Weight
Explanation: Volume refers to the amount of space occupied by an object or substance.
State of matter that has fixed shape and fixed volume is called?
a) Solid
b) Liquid
c) Gas
d) Plasma
Explanation: Solids have a fixed shape and volume, unlike liquids and gases that can change shape and volume.
Volume of solids do not change with?
a) Pressure
b) Temperature
c) Density
d) Force
Explanation: Solids maintain a constant volume and do not significantly change under pressure.
State of matter that has fixed volume but not fixed shape is called?
a) Liquid
b) Solid
c) Gas
d) Plasma
Explanation: Liquids have a fixed volume but can change shape according to the container they are in.
State of matter that has no fixed shape and fixed volume is called?
a) Gas
b) Liquid
c) Solid
d) Plasma
Explanation: Gases have neither a fixed shape nor a fixed volume. They expand to fill the container they are in.
Solids, liquids, and gases mix together to form?
a) Mixture
b) Solution
c) Compound
d) Element
Explanation: When solids, liquids, and gases combine, they form a mixture. The components of a mixture retain their individual properties.
Solution is a kind of?
a) Mixture
b) Homogeneous mixture
c) Heterogeneous mixture
d) Compound
Explanation: A solution is a homogeneous mixture where the solute is dissolved in the solvent, resulting in uniform composition.
The process of separation of solute and solvent from the mixture is called?
a) Filtration
b) Evaporation
c) Distillation
d) Condensation
Explanation: Filtration is the process of separating solids (solute) from liquids (solvent) in a mixture.
Solid can be converted into liquid by?
a) Freezing
b) Melting
c) Condensation
d) Sublimation
Explanation: Melting is the process where a solid changes into a liquid when it is heated.
Liquid can be converted into gas by?
a) Evaporation
b) Freezing
c) Condensation
d) Melting
Explanation: Evaporation is the process where a liquid changes into a gas, usually when it is heated.
Gas can be converted into liquid by?
a) Freezing
b) Condensation
c) Melting
d) Evaporation
Explanation: Condensation is the process where gas turns into liquid as it cools down.
Liquid can be converted into solid by?
a) Sublimation
b) Freezing
c) Melting
d) Evaporation
Explanation: Freezing is the process where a liquid turns into a solid when it is cooled.
Water is a?
a) Compound
b) Mixture
c) Element
d) Solution
Explanation: Water is a compound made up of two hydrogen atoms and one oxygen atom (H2O).
Heat and its Measurement Science Mcq
Heat is a form of?
a) Energy
b) Matter
c) Force
d) Light
Explanation: Heat is a form of energy, which is transferred between substances due to a temperature difference.
In what heat energy is measured?
a) Joules
b) Newtons
c) Watts
d) Volts
Explanation: Heat energy is measured in joules (J), which is the standard unit of energy in the International System of Units (SI).
What is the unit of energy?
a) Joules
b) Watts
c) Calories
d) Newtons
Explanation: The standard unit of energy is the joule (J). Other units like calories or watts may also be used in specific contexts.
How many scales are there to measure temperature?
a) One
b) Two
c) Three
d) Four
Explanation: There are three primary scales to measure temperature: Celsius, Fahrenheit, and Kelvin.
The degree of hotness is measured by?
a) Thermometer
b) Barometer
c) Hydrometer
d) Seismometer
Explanation: A thermometer is used to measure the degree of hotness or temperature of an object or environment.
Which are the fundamental particles of an atom?
a) Protons, Neutrons, Electrons
b) Protons, Neutrons, Photons
c) Neutrons, Electrons, Ions
d) Electrons, Ions, Neutrons
Explanation: The fundamental particles of an atom are protons, neutrons, and electrons. Protons are positively charged, neutrons are neutral, and electrons are negatively charged.
Which particles of an atom are negatively charged?
a) Protons
b) Neutrons
c) Electrons
d) Neurons
Explanation: Electrons are negatively charged particles that orbit the nucleus of an atom.
Which particles of an atom are positively charged?
a) Electrons
b) Neutrons
c) Protons
d) Photons
Explanation: Protons are positively charged particles located in the nucleus of an atom.
Which particles of an atom are not charged and called neutral?
a) Protons
b) Electrons
c) Neutrons
d) Ions
Explanation: Neutrons are neutral particles, meaning they have no electric charge. They are found in the nucleus of the atom.
How many kinds of circuit are there?
a) One
b) Two
c) Three
d) Four
Explanation: There are two main types of electrical circuits: series and parallel. A series circuit has components connected end-to-end, while a parallel circuit has components connected in branches.
How many poles does a magnet have?
a) One
b) Two
c) Three
d) Four
Explanation: A magnet has two poles: a north pole and a south pole.
How many types of magnets are there?
a) One
b) Two
c) Three
d) Four
Explanation: There are three main types of magnets: natural magnets, artificial magnets, and electromagnets.
The magnets which are made with the help of electricity are called?
a) Artificial magnets
b) Natural magnets
c) Permanent magnets
d) Electromagnets
Explanation: Electromagnets are magnets that are created by passing an electric current through a coil of wire.
Natural magnets are also called?
a) Electromagnets
b) Artificial magnets
c) Lodestone
d) Permanent magnets
Explanation: Natural magnets, such as lodestone, are found in nature and have magnetic properties without being artificially magnetized.
Artificial magnets are also called?
a) Lodestones
b) Permanent magnets
c) Electromagnets
d) Temporary magnets
Explanation: Artificial magnets, such as those made in factories, are often permanent magnets, meaning they retain their magnetic properties over time.
The end of a magnet is called?
a) Pole
b) Core
c) Field
d) Charge
Explanation: The ends of a magnet are called poles, with a north pole and a south pole.
The property of magnet to attract things is called?
a) Magnetism
b) Gravitational pull
c) Friction
d) Electrostatics
Explanation: Magnetism is the property of certain materials (like iron) to attract or repel other materials.
Movements of the Earth General Science
Earth rotates from the west to?
a) East
b) North
c) South
d) West
Explanation: The Earth rotates on its axis from the west to the east, which causes the sun to appear to rise in the east and set in the west.
Rotation of Earth causes?
a) Day and night
b) Seasons
c) Tides
d) Eclipses
Explanation: The rotation of the Earth on its axis causes the cycle of day and night as different parts of the Earth are exposed to the Sun.
Earth’s traveling around the Sun is called?
a) Revolution
b) Rotation
c) Orbit
d) Axis
Explanation: The Earth travels around the Sun in an elliptical orbit, which is called its revolution.
Revolution of Earth causes?
a) Seasons
b) Day and night
c) Tides
d) Solar eclipses
Explanation: The revolution of the Earth around the Sun, combined with its axial tilt, causes the seasons to change.
The Earth is tilted at an angle of?
a) 23.5 degrees
b) 45 degrees
c) 15 degrees
d) 30 degrees
Explanation: The Earth is tilted at an angle of 23.5 degrees on its axis, which is responsible for the changing seasons as it orbits the Sun.