Nitrous oxide, commonly called laughing gas, has been a matter of concern to environmentalists recently because:
it is thought to cause cancer at low concentrations.
it produces photochemical smog.
it is a greenhouse gas.
none of the above
Additional Questions
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The radioactive element most commonly detected in humans is |
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Radioisotopes which are used in medical diagnosis are known as |
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Most commercial nuclear power plants worldwide are cooled by |
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Which of the following elements was unknown to ancient civilizations? |
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Steel is composed of a number of elements. The two essential elements are iron and |
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Which of the following is not a major pollutant from automobiles? |
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The characteristic odour of Garlic is due to which one of the following? |
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Which acid is produced when milk gets sour? |
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When an ant bites a person, which irritating chemical it (ant) injects into his (person) body? |
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Washing soda is the common name for |
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