Last socials test, terms from notes

Question 1

the deterioration of the productive capacity of soil for either present or future use (it becomes harder to use the soil to meet our needs)

Answer 1

Land degradation

Question 2

an area that gets less than 250mm of rain annually

Answer 2

Arid region

Question 3

areas that get 250-500mm of rain annually

Answer 3

Semi-arid region

Question 4

Fertile soil

Answer 4

Arable land

Question 5

a change in the physical landscape caused by human or natural forces.

Answer 5

Terrain deformation

Question 6

the breakdown of soil as a result of leaching. Salinization, acidification, or pollution.

Answer 6

Chemical deterioration

Question 7

Nutrients in the soil being washed away or dissolved because of too much run-off.

Answer 7

Leaching

Question 8

The increase of salt content of soil to the point where soil becomes toxic.

Answer 8

Salinization

Question 9

Reduction of PH in soil. caused from uptake of CO2

Answer 9

Acidification

Question 10

Substances or energy not being properly dispersed.

Answer 10

Pollutants

Question 11

when the land is degraded due to compaction, waterlogging, or subsidence.

Answer 11

Physical deterioration

Question 12

Occurs when human activity reduces productivity of an arid or semi-arid area until it looks like a desert. Results in loss of fertile soil.

Answer 12

Desertification

Question 13

What are the 3 major sources of freshwater pollution?

Answer 13

sewage waste
industrial waste
agricultural waste

Question 14

the process of solving an environmental problem.

Answer 14

Remediation

Question 15

The force of gravity had filtered the soil by pushing it into cavities, fissures in the rock & loose sediments found underground.

Answer 15

aquifer

Question 16

open water percolating down from above

Answer 16

Open aquifer

Question 17

surrounded on top & bottom by impermeable rock.

Answer 17

Closed aquifer

Question 18

sources of energy that are developed to avoid or lessen the impact of fossil fuel use.

Answer 18

Alternative energy sources

Question 19

anything that provides additional carbon to the atmosphere

Answer 19

Carbon source

Question 20

exists when carbon is removed from the atmosphere for a relatively short time

Answer 20

Carbon sink

Question 21

any carbon that has been removed from the atmosphere for a very long time.

Answer 21

Fixed carbon