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Define gravitational force?

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Explain with the help of diagram

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Define lever?

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Write names of two products which are made with the help of bacteria?

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Define load and effort?

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What is a fuse? Describe its uses?

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Define melting, boiling and freezing.

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What causes the change in rocks?

asked Jan 1, 2019 in History by danish (1.0m points)

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Write a short note on composition of material objects

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Why the things contract on cooling?

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How do static charges build up?

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Write disadvantages of friction.

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Why is it difficult to compress any solid?

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In which direction a freely swinging bar magnet stays when it stops?

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Name the gas which shields us from dangerous ultra-violet rays of the sun.

asked Jan 7, 2019 in Geography by danish (1.0m points)

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Why sunlight is important for plants?

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Explain electrical circuit and its component.

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Give the reason for friction between two surfaces

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What do you know about first kind of lever?

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Write methods to reduce friction.

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