MCQs: Wind is beneficial resource of energy as it doesn't cause
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MCQs: Hot water or steam carrying geothermal energy often comes up to surface in
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MCQs: Fossils fuel is an important source of energy for
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MCQs: When animals and plants are rotten in the absence of air, there produces a gas called
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MCQs: Black painted panels which are hanged at roofs to trap heat and energy from sun, are
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MCQs: Earth emits heat by eruptions of
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MCQs: Plants utilize water, carbon dioxide and light to produce their own food by
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MCQs: Plants material and waste from living things are regarded as
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MCQs: Bio gas is a renewable source of
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MCQs: 1 kilo joule is equal to
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MCQs: When wind blows across seas and oceans, there are seen
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MCQs: When air holes of a Bunsen burner are closed they give
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MCQs: Trapped heat inside the earth is known as
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MCQs: To play and work, we get energy from
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MCQs: The floating devices which are connected to chain for generation of electricity are called
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MCQs: Burning of fossils fuel is leading environment towards
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MCQs: The energy resources which would not run out are called
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MCQs: The products which are helpful in harnessing solar energy, are
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MCQs: A dangerous activity which results in many deaths due to gas explosion, caves in and flooding is
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MCQs: Solar cells and solar furnaces are
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