Carbon Cycle Global Threats EQ3

What percentage of the Earth's land area is covered by forests?

• 20%

• 30%

• 40%

• 50%

Which commodity is NOT viewed as a reason for increased land clearing and deforestation?

• Soy

• Palm oil

• Wheat

• Beef

What is a result of more soil erosion due to deforestation?

• Increased vegetation

• Eroded material in rivers

• Decreased surface runoff

• Increased groundwater storage

What is the impact of deforestation on evaporation from vegetation?

• Increased evaporation

• Decreased evaporation

• No change

• Fluctuating evaporation

How many hectares of forest were affected by deforestation each year between 2000 and 2010?

• 5 million hectares

• 13 million hectares

• 20 million hectares

• 8 million hectares

What do TNCs fail to prevent according to Greenpeace?

• Air pollution

• Deforestation

• Water scarcity

• Urbanization

What is a consequence of increased CO2 in the ocean?

• Decreased acidity

• Increased acidity

• Increased oxygen levels

• Decreased salinity

What do many countries rely on their marine life for?

• Agriculture

• Tourism

• Mining

• Manufacturing

What is a consequence of thawing permafrost?

• Decreased CO2 release

• Increased CH4 release

• Stabilization of wetlands

• Reduced global warming

What is the impact of losing Arctic Albedo?

• Increased reflection of solar radiation

• Increased absorption of solar radiation

• Decreased methane release

• Stabilization of climate