4.2 Access to Freshwater

Question 1

Physical Scarcity

Answer 1

when there is a shortage of water because of local ecological conditions

Question 2

Economic Scarcity

Answer 2

when there is inadequate water infrastructure

Question 3

Eutrophication Process

Answer 3

1. Excess amounts of fertilizers (nitrates and phosphates) enter a body of water
2. Algal bloom occurs with excess nutrients
3. Sunlight is blocked by algae
4. Dead algae gets decomposed by bacteria that consume large amounts of oxygen
5. Lowered levels of oxygen kill off all species living in the body of water

Question 4

Anoxic Water

Answer 4

the absence of dissolved oxygen in a body of water