Practice Library
All MCQs
Browse exam-wise, subject-wise, and country-wise MCQs with explanations.
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Correct Answer: C. Carbon dioxide
Explanation:
Plants absorb carbon dioxide during photosynthesis.
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Correct Answer: B. Physical methods
Explanation:
Mixtures are separated by physical methods such as filtration or evaporation.
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Correct Answer: B. Gravity
Explanation:
Gravity pulls objects toward the Earth.
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Correct Answer: B. Photosynthesis
Explanation:
Plants make food by photosynthesis.
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Correct Answer: C. Solid
Explanation:
A solid has a fixed shape and fixed volume.
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Correct Answer: B. smaller area
Explanation:
Pressure is force divided by area, so smaller area means greater pressure.
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Correct Answer: B. It reflects
Explanation:
Light bouncing from a mirror is reflection.
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Correct Answer: C. Rough sandpaper
Explanation:
Rough surfaces usually create more friction.
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Correct Answer: B. current to flow
Explanation:
Current flows when the circuit is complete.
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Correct Answer: B. Newton
Explanation:
Force is measured in newtons.
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Correct Answer: A. distance ÷ time
Explanation:
Speed = distance ÷ time.
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Correct Answer: B. 70°
Explanation:
Angles in a triangle sum to 180°, so the third angle is 70°.
