Chemistry-The early atmosphere

Question 1

Define

Greenhouse gas

Answer 1

A gas that absorbs long wavelengh infrared radiation given off by the Earth,and emits it in all dierections.

Question 2

Define

Global warming

Answer 2

An increase in the average surface temperature of the Earth atomspere

Question 3

Define

Water stress

Answer 3

A shortage of fresh water

Question 4

Define

Carbon footprint

Answer 4

The amount of Carbon compounds given out over the full life cycle of a product, service or event

Question 5

Define

Carbon neutral

Answer 5

Fuels and processes whose use result in zero net realese/absorpotion of Carbon compunds into/from the atomspere.

Question 6

Define

Acid rain

Answer 6

Precipitation with a pH lower than 5.5 caused by man-made pollutants, such as Sulfur dioxide and Nitrous oxides

Question 7

Define

Global Dimming

Answer 7

Particulates in the atomsphere causing less of the suns energy to reach the Earth’s surface

Question 8

Define

Particulates

Answer 8

Tiny solid particles in the atomsphere, most commonly soot, that make up less than 0.01%

Question 9

List

Composition of atomsphere

Answer 9

Nitrogen:78%
Oxygen:21%
Argon:0.9%
Carbon dioxide:0.04%
Water vapor:Varible, usually peaks at 0.05%
Other gas+Particulates:0.01%

Question 10

List

Composition of early atomsphere

Answer 10

Carbon dioxide:95%
Water vapor:4%
Ammonia/Methane:0.9%
Other gas+Particulates:0.1%