Pollution

Question 1

Define Pollution

Answer 1

Pollution is the contamination of land, water or air by the discharge of harmful substances.

Question 2

Name Types of Pollution

Answer 2

Based on the location of the affected area:
Land
Air
Water

Or types of pollution:

Solid waste
Noise
Light

Question 3

Define Land Pollution

Answer 3

Any type of solid, liquid or gaseous discharge released by humans that directly affect the land around them.

Question 4

Solid wastes

Answer 4

These are non biodegradable pollutants and
include

plastic bottles,

glass,

Styrofoam and

metals

Question 5

Name non-biodegradable

Answer 5

These are non biodegradable pollutants and include
plastic bottles,
glass,
Styrofoam and
metals

Question 6

What can solid waste lead to

Answer 6

Effect: block water ways, cause flooding which can lead to
disease,
crop loss and
increase in pests.

Question 7

Name a few ways to control solid waste

Answer 7

Control: Reduce production of non biodegradable products, replace with biodegradable options.
Dispose responsibly
Reuse
Recycle

Question 8

List Non-biodegradable waste

Answer 8

From households and industry:
Lead
Mercury
Plastic particles
Cyanide

Question 9

Effects of Non Biodegradable waste

Answer 9

Can accumulate on land and then enter air or water where they can poison living things

Question 10

Control

Answer 10

Removal of toxins before disposal.
Replace with non-toxic alternatives

Question 11

Insecticides and herbicides

Answer 11

These are used in agriculture and include pesticides such as DDT

Question 12

Eutrophication

Answer 12

The enrichment of an ecosystem with chemical nutrients, typically compounds containing nitrogen, phosphorus, or both

Question 13

Eutrophication process in 6 stages

Answer 13

Addition of Nitrates
Growth of Plants
Death of Plants
Lack of Oxygen
Suffocation