Climate Change

what was the worldwide forest area in 2021, and how did it compare to the forest area in 1990?

• 4.05 billion hectares in 2021, decreased from 4.24 billion hectares in 1990

• 4.05 billion hectares in 2021, increased from 4.24 billion hectares in 1990

• 4.24 billion hectares in 2021, increased from 4.05 billion hectares in 1990

• • 4.24 billion hectares in 2021, decreased from 4.05 billion hectares in 1990

What greenhouse gas is produced by farm animals when they digest their food?

• Methane

• Nitrous Oxide

• Carbon dioxide

• Ozone

What role do forests play in the carbon cycle?

• They release carbon dioxide into the atmosphere.

• They act as a major carbon sink.

• They have no effect on carbon dioxide levels.

• They increase the amount of ozone in the atmosphere.

What are the economic consequences of damage to infrastructure caused by extreme weather events?

• 
  Increased tourism and economic growth

• Decreased need for infrastructure maintenance

• Reduced repair and reconstruction costs

• Significant repair and reconstruction costs

Over 56 billion animals are raised globally every year for food purposes. This number is how many times greater than the human population?

• Ten times

• Six times

• Eight times

• Four times

Which of these is an example of an Ozone Depleting Substance?

• Methane

• Nitrous Oxide

• chlorofluorocarbons

• Benzene Hexachloride

What has caused the ozone hole above the Arctic to close?

• Increase in greenhouse gases

• Increase in solar activity

• Polar vortex winds

• Decrease in global temperatures

What was the chief objective of the Montreal Protocol signed in 1987?

• To increase the production of ODS

• To reach a global agreement to reduce the production of ODS

• To increase the ozone hole

• To reduce global temperatures

What is the percentage of volcanic CO2 emissions compared to the CO2 emissions produced by human activities annually?

• 1%

• 2%

• 5%

• 10%

What is one of the consequences of reduced crop yields due to extreme weather events?

• Lower food prices

• Increased agricultural exports

• Higher food prices and food insecurity

• Improved food quality