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Differentiate between solute, solvent and solution

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What do you know Comet Halley?

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What are fossil fuels?

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Give two example of changing potential energy into kinetic energy?

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Compare the properties of solution and suspension?

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What is an element .Also give example?

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Which gas is the major part of air?

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How pulleys work in water pump?

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Find out the action of a pulley system is altered by changing the tension of the band connecting two pulleys.

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Describe the form of energy transfer in an enviroment.

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Describe the relationship between biotic and abiotic components of the enviroment.

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Explain how energy transfer takes place in an environment?

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What are the uses of convention current?

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Why oxygen gas is important?

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What is greenhouse effect?

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Why some gases are called rare gases what are these?

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What is a mixture?

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What is pin-hole camera and who invented it?

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What is dry ice?

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Define producer with example?

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