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Chemistry

Chemistry · Quick practice · answer shown after each question

Environmental chemistry: air, water and soil pollution

Question 1 of 10

Question 1 of 10

CFCs help to repair the ozone layer.

Question 2 of 10

Question 2 of 10

An example of a heavy metal pollutant is

Question 3 of 10

Question 3 of 10

Lead was removed from petrol because

Question 4 of 10

Question 4 of 10

Catalytic converters in car exhausts convert

Question 5 of 10

Question 5 of 10

Liming acidic soils involves adding

Question 6 of 10

Question 6 of 10

Methane is a more powerful greenhouse gas than carbon dioxide per molecule.

Question 7 of 10

Question 7 of 10

Recycling aluminium cans

Question 8 of 10

Question 8 of 10

Ozone depletion is mainly caused by

Question 9 of 10

Question 9 of 10

The layer in the upper atmosphere that absorbs UV radiation is the ___ layer.

Question 10 of 10

Question 10 of 10

Explain how CFCs destroy the ozone layer, with equations, and state the effects of ozone depletion on human health.

Questions written by OtisamLMS in the style of the WASSCE. They are not WAEC past questions.