2.4 Human impact

Question 1

Carbon Dioxide

Answer 1

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

Question 2

CFCs

Answer 2

Chlorofluorocarbons. Important greenhouse gases. They destruct the ozone.

Question 3

Climate Change

Answer 3

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

Question 4

Energy budget

Answer 4

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

Question 5

Enhanced greenhouse effect

Answer 5

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

Question 6

Global Warming

Answer 6

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

Question 7

Greenhouse effect

Answer 7

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

Question 8

Greenhouse gases

Answer 8

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

Question 9

Heat Island

Answer 9

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

Question 10

Methane

Answer 10

Hydrocarbon gas produced during the decomposition of organic material.

Question 11

Microclimate

Answer 11

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

Question 12

Ozone hole

Answer 12

Refers to the thinning of the ozone layer.

Question 13

Smog

Answer 13

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

Question 14

Steric effect

Answer 14

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