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Define food?

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Define orbital motion of the earth.

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When does the thermometer shows low termprature?

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What do you know about pulley?

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Why the clinical thermometer should not put in hot water?

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Why different animals have different mode of movement?

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Prove with the help of an activity that sound can travel through solids.

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How can you prove that the Earth is round?

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How can we measure the speed of a moving object?

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Why is it necessary to boil water before drinking?

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How muscles work? State an example

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Define consumers?

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What do you know about virus?

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Which gas plants use from air to to make food?

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How the temperature of human body can be measured?

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Why sound canniot pass through vaccum in space?

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Vitamins don't give energy but still are impotant.why?

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Write the examples of herbivores

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How does the spin of the Earth cause day and night?

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What is growth?

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