ENVIROMENTAL CHEMISTRY CAT one DUE ON 19TH OCTOBER 2021 1. (a) Define the following terms [6Marks] i. Environmental pollution

ENVIROMENTAL CHEMISTRY CAT one DUE ON 19TH OCTOBER 2021 1. (a) Define the following terms [6Marks] i. Environmental pollution ii. Photochemical smog iii. Acid rain (b) What is green Chemistry? [3 marks] (c) Name four greenhouse gases and explain how these may cause global warming. [4 marks] (d) Sketch the layers of the atmosphere and explain the phenomena that occur in each layer. Which layer supports life? [4 marks] (e) Discuss the term ‘environmental fate’ of a pollutant [1 marks] (b) How is ozone depleted by fluoro-chloro carbons (CFCs)? [4 marks] 2. (a) Write the following environmental abbreviations in full [5 Marks] i. BOD ii. COD iii. POPs iv. PAN v. PCBs (c) Name four types of radiations that are harmful to human life [4 marks] (e) Discuss the harmful effects of photochemical smog [4 marks] 3. (a) How do detergents cause water pollution [2 marks] (b) Distinguish between chlorosis and fluorosis [2 marks] (c) Discuss in detail how environmental pollution can be managed [2 marks] (e) Write the major chemical equations during acid rain in the atmosphere [3 marks]


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