2.4 Human impact Flashcards Preview

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Flashcards in 2.4 Human impact Deck (14)
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1

Carbon Dioxide

Colourless, odourless gas. It is a greenhouse gas and contributes to global warming.

2

CFCs

Chlorofluorocarbons. Important greenhouse gases. They destruct the ozone.

3

Climate Change

Changes in climate that occur both naturally as well as due to human activity.

4

Energy budget

Amount of energy entering a system, the amount leaving the system and transfer of energy within the system

5

Enhanced greenhouse effect

Increasing amount of greenhouse gases as a result of human activity.

6

Global Warming

Observed increase in temperatures around the world that have been noticed over the last 50 years.

7

Greenhouse effect

The process by which certain gases heat up the earth by the

8

Greenhouse gases

Water Vapour, Carbon Dioxide, Methane, Chlorofluorocarbons, Nitrate oxides and Ozone.

9

Heat Island

Increase in temperatures that are observed around a large town or city.

10

Methane

Hydrocarbon gas produced during the decomposition of organic material.

11

Microclimate

Climate of a small area, such as a woodland, lake or hedgerow , right up to the climate associated with a town or city.

12

Ozone hole

Refers to the thinning of the ozone layer.

13

Smog

Fog containing impurities, mainly nitrogen oxides and volatile organic compounds.

14

Steric effect

Expansion of ocean water as it warms, causing sea levels to rise.