Environmental risks and benefits

Question 1

Describe global warming

Answer 1

The greenhouse effect is when infrared radiation passes through the atmosphere, and some is absorbed and re-emitted in all directions by greenhouse gas molecules. The effect of this is to warm the Earth’s surface
and lower atmosphere. Global warming happens as a result of too much greenhouse gas

Question 2

Effects of global warming

Answer 2

• melting ice-sheets
• rising sea levels
• increase in storms
• change in the distribution of precipitation
• plants and wildlife might not have the time to adjust

Question 3

Define pollution

Answer 3

The contamination of the environment

Question 4

Give methods of exposure to pollutants

Answer 4

• breathing in chemical vapors and dust
• drinking or eating the chemical(ingestion)
• absorbing the chemical through the skin

Question 5

Describe soil erosion

Answer 5

• Significant impact on agricultural - implications for the urban environment.
• Reduce crop yields

Question 6

Describe the consequences of desertification ( environmental)

Answer 6

• Loss of soil nutrients