Environmental Chemistry

A) It must sterilize the entire lake B) It can supply nutrients that promote eutrophication C) It turns oxygen into […]

A) It comes only from deep ocean vents B) It is emitted directly by all trees C) Sunlight drives reactions […]

A) Amount of pure hydrogen gas B) The lake's magnetic strength C) Number of metal atoms only D) Oxygen microbes […]

A) Only atmospheric nitrogen gas B) Only liquid coolant C) Harmful gases such as CO, hydrocarbons and NOₓ D) All […]

A) Absorption of pure nitrogen gas B) Only erosion of beach sand C) Absorption of atmospheric CO₂ forming carbonic acid […]

A) Only acid stored in batteries B) Water's natural freezing C) Transfer of acidic pollutants from air by rain, snow […]

A) Only volcanic lava B) Sunlight-driven reactions involving NOₓ and VOCs C) Only salt crystallization D) Only nuclear fission Answer: […]

A) Chlorofluorocarbons B) Alkanes with no halogen C) Noble gases D) Common table salt crystals Answer: A Explanation: UV light […]

A) Sodium ion B) Hydrogen molecule C) Calcium carbonate D) Chlorine radical Answer: D Explanation: UV breakdown of CFCs can […]

A) N₂ and Ar B) He and Ne C) O₂ and N₂ D) SO₂ and NOₓ Answer: D Explanation: Sulfur […]