1. Which of these is a renewable source of energy?
Explanation: Wind is a renewable source of energy because it can be replenished naturally.
Report for correction2. Which part of the plant produces seeds?
Explanation: Flowers produce seeds through pollination and fertilization.
Report for correction3. Which of the following is a man-made material?
Explanation: Plastic is a man-made material created through chemical processes.
Report for correction4. What do we call animals that eat both plants and meat?
Explanation: Omnivores are animals that eat both plants and animals.
Report for correction5. What is the main source of energy for all living things on Earth?
Explanation: The Sun is the primary source of energy for all living organisms on Earth.
Report for correction6. Which part of a plant helps it make food?
Explanation: The leaf contains chlorophyll, which helps in photosynthesis to make food for the plant.
Report for correction7. What type of energy is stored in food?
Explanation: Food contains chemical energy that is released when our body digests it.
Report for correction8. What is the function of the heart?
Explanation: The heart pumps blood throughout the body, supplying oxygen and nutrients.
Report for correction9. What is the natural satellite of the Earth?
Explanation: The Moon is the Earth's natural satellite, orbiting the Earth.
Report for correction10. What type of simple machine is a seesaw?
Explanation: A seesaw is a type of lever because it pivots around a fulcrum in the middle.
Report for correction11. What is the state of matter of air?
Explanation: Air is a mixture of gases, primarily nitrogen and oxygen.
Report for correction12. What do plants produce during photosynthesis?
Explanation: Plants produce oxygen as a byproduct of photosynthesis.
Report for correction13. Which of these is the hottest planet in our solar system?
Explanation: Venus is the hottest planet because of its thick atmosphere, which traps heat.
Report for correction14. Which of the following is a source of light?
Explanation: The Sun is a natural source of light, providing light and energy to Earth.
Report for correction15. What is the boiling point of water?
Explanation: Water boils at 100 degrees Celsius at sea level.
Report for correction16. Which of these objects is a good conductor of electricity?
Explanation: Copper is a good conductor of electricity because it allows electric current to pass through it easily.
Report for correction17. Which part of the human body helps in breathing?
Explanation: The lungs help in breathing by taking in oxygen and releasing carbon dioxide.
Report for correction18. Which planet is known as the Earth's twin?
Explanation: Venus is called Earth's twin because its size and structure are similar to Earth's.
Report for correction19. What form of energy is used to run a fan?
Explanation: A fan runs on electrical energy, which powers its motor to move the blades.
Report for correction20. Which of the following animals is a herbivore?
Explanation: A cow is a herbivore because it eats only plants.
Report for correction21. Which force pulls objects toward the Earth?
Explanation: Gravity is the force that pulls objects toward the center of the Earth.
Report for correction22. What is the basic unit of life?
Explanation: The cell is the smallest unit of life and is found in all living things.
Report for correction23. Which of the following materials can float in water?
Explanation: A wooden stick is less dense than water, which allows it to float.
Report for correction24. What do we call the changing of water into vapor?
Explanation: Evaporation is the process where water turns into vapor due to heat.
Report for correction25. What is the main part of a plant that absorbs water?
Explanation: Roots absorb water and nutrients from the soil to help the plant grow.
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