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Define adaptation.

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Name the layers of Earth.

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Why algae are called autotrophs?

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What are forests?

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What should we do when a thermometer breaks?

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Write blood composition in %.

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What ios the difference between living and non-living things?

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Why mercury column is bent above the bulb in a clinical thermometer?

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What is open circuit?

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Which is the deepest layer of soil?

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To which degree thermometer measure the temperature?

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Briefly describe aquatic enviroment.

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Which is the most effective way to protect the ozone layer?

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What is clayey soil?

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Which animals have simple life cycles?

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What are conductors and insulators?

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What is thermosphere?

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What is light energy?

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How heat energy is produced?

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How electrical energy is produced?

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