ENVIRONMENTAL SCIENCE-FORM 2-POLLUTION & GLOBAL WARMING

Pollution can be either natural or manmade

• True

• False

Plastic bags takes approximately 20 years to decay

• True

• False

Water pollution is the

• introduction of harmful materials into oceans

• introduction of harmful materials into the atmosphere

• introduction of harmful materials into oceans, lakes, rivers and groundwater

(i) sewage

(ii) industrial waste

(iii) oil spills

(iv) agriculture runoff

Which of the above may cause coastal waters to become polluted

• (i) (ii) (iii)

• (ii) (iii)

• (i) (ii) (iii) (iv)

• (i) (ii) (iii)

Pollution of the land by farmers can occur when farmers

• Use pesticides

• apply artificial fertilizers

• through agricultural runoff

• foul smells

From the diagram which area is an area likely to be polluted

• A

• B

• C

• D

From the diagram which area is likely to experience air pollution

• A

• B

• C

• D

Environmental degradation is the

• deterioration of the environment through depletion of air, land, water and soil resources

• deterioration of the environment through depletion of the ozone layer

• deterioration of the environment through the emission of greenhouse gases

(i) environmental degradation

(ii) global warming

(iii) ozone layer depletion

(iv) recycling

In the above list, which are effects of pollution

• (i) (ii) (iii)

• (i) (ii) (iv)

• (ii) (iii) (iv)

• (i) (ii) (iii) (iv)

All the following are greenhouse gases EXCEPT

• carbon dioxide

• methane

• oxygen

• ozone