Biology 7.3.2

Question 1

What are the Sources of ‘Water Pollution’? (3)

Answer 1

-Toxic Chemicals.

-Untreated Sewage.

-Fertilisers.

Question 2

What are the Sources of ‘Land Pollution’? (2)

Answer 2

-Toxic Chemicals.

-Discarded Rubbish.

Question 3

What are the Sources of ‘Air Pollution’? (1)

Answer 3

-Greenhouse Gasses (eg CO2, Sulphur Dioxide, Methane Gas, Nitrogen Oxides, etc.).