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DINESH PUBLICATION-ENVIRONMENTAL ISSUES-Brain teasers-X
- Agent Orange was named so because of
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- Agent Orange consisted of
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- Coal mining has been known, since
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- Mineral oil is
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- The earliest use of petroleum was in
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- Petrol is known as gasoline in
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- Gasohol was first used in
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- Knocking in a fuel is
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- Antiknocking agent of unleaded petrol is
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- Catalytic converter used for controlling pollution is used in
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- Catalytic converter brings about
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- Smoke or dust dispersed in air is called
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- Mist is fog with horizontal visibility of
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- Fog is formed by
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- Fluoride content of water which causes fluorosis is
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- The term 'greenhouse effect' was given by
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- Biggest oil spill occurred in
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- The term 'acid rain' was given by
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- Polychlorinated biphenyls are chemicals useful is
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