3.4 Human impact Flashcards Preview

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Flashcards in 3.4 Human impact Deck (14)
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1

Acid precipitation

Any precipitation with a pH lower than 5.0

2

Contaminants

Materials that have harmful impacts and degrade the environment

3

Dry deposition

Materials transported in suspension in the air that settle on the ground as dry matter.

4

Hazardous wastes

Wastes that pose a present or potential threat to humans or wildlife

5

Incineration

Burning of refuse, often in a specially designed facility

6

Open cast mining

Extensive excavation in which the overlying material is removed by machinery and the seams of deposits are left below.

7

Pollutants

Materials that have harmful impacts and degrade the environment

8

Pollution

Act of releasing materials that harm the environment

9

Recycling

Process of taking apart an old product and using the material it contains to make a new product

10

Spoil heaps

Large unconsolidated mounds of waste materials extracted in the process of obtaining an ore.

11

Subsidence

Collapse of the ground downwards

12

Tailing

Impurities left behind after a mineral has been extracted from its ore.

13

Waste

Residual materials and by-products that are generated by human use of the Earth's resources and end up unwanted.

14

Wet deposition

Materials transported in suspension in the air that eventually fall to the ground as precipitation.