Q. Volcanoes' and 'natural firs' are natural sources of

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Q. Acid deposited in rain and snow is known as

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Q. Deposition of acid substance, generated from pollution, known as

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Q. Aquatic and terrestrial animals need sulphur and nitrogen to

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Q. 'Baking soda' and 'lime' has

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Q. When did new york legislation passed a bill to reduce sulfur emission ?

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Q. What witnessed most disastrous volcanic eruption ?

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Q. Where does salamander breaded ?

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Q. Pollutants in form of fine dust particles are known as

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Q. What is cause of 'forest' decline?

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Q. Which predators lose a rich food source, when pollutants kill aquatic insects ?

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Q. Acid dissolved nutrients and valuable minerals from the

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Q. An acid is a chemical substance, that adds hydrogen ion to the

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Q. In plants, acids inhibit process of

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Q. In acid rain, water dissolves toxic elements from rocks such as:

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Q. Acid deposition weakens plants by damaging their

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Q. What does sulphur and nitrogen form with water in atmosphere ?

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Q. What does coal and oil contain ?

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Q. Bathe spruce and fir trees on mountains are more acidic than

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Q. Lakes which are located downwind from major industrial centers, vulnerable to

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