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What is Maglev train

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What is demagnetization.

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What is static electricity.

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.How an atom is neutral.

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What are two types of electricity.

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What is current electricity.

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What is electric current.

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What causes static electrictiy.

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What are electrons, protons and neutrons.

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Define atoms.

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What is lightening? How is it produced

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What are insulators. Give examples.

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What do we need to live a comfortable life.

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What are causes of water pollution.

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What is land pollution.

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What is air pollution.

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What is biodegradable waste.

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Give some examples of non-biodegradable waste.

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How are we polluting our environment.

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Give some example of biodegradable waste

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