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What last quarter.

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How do you know that similar poles of a magnet repel each other

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What is oxygen? Give importance

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Why the sun looks bigger than the other stars

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.How an atom is neutral.

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In how many ways animals can reproduce.

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What are electrons, protons and neutrons.

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How long it takes for the Moon to complete one orbit around the earth.

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What do we need to live a comfortable life.

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How carbon dioxide gas is important for plant.

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What is water cycle.

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What are neurons.

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What are function of left atrium.

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What is function of large intestine.

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How does reproduction takes place by a single cell.

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What are bacteria.

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What are irreversible changes.

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Why there is no soil on Mars and venus.

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What is stem

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Describe the religious festivals of Pakistan.

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