Test 8 managing climate change

Define the term ‘greenhouse gas’.

• A gas that absorbs and emits radiant energy within the thermal infrared range

• A gas that cools the Earth's surface

• A gas that is only found in greenhouses

• A gas that is used in refrigeration

Name three major sources of greenhouse-gas emissions from human activities.

• Burning Fossil Fuels

• Cattle Farming

• Solar Panels

• Rice Farming

Outline two difficulties of monitoring and predicting climate change.

• Lack of funding

• computer models giving different estimates

• Political disagreements

• unreliable or uncertain data

Using Figure 1, estimate the maximum predicted increase in sea-level rise for 2040

• 0.5 m

• 3.0 m

• 0.75 m

• 0.25 m

Describe the trend in sea-level rise for the minimum predicted values.

• Rapid increase throughout the period

• Steady increase with slight acceleration

• Decrease over time

• No change

Suggest what the impacts might be from a 0.75 m rise in sea level on low-lying coastal regions.

• Increased agricultural productivity

• Loss of habitat and increased flooding

• Decrease in marine biodiversity

• Expansion of coastal land

Explain how sea-level rise is caused by the emissions from human activities.

• By increasing the Earth's gravitational pull

• By melting ice caps and glaciers

• By reducing the Earth's rotation speed

• By increasing volcanic activity

State two impacts that climate change is having on the environment, in addition to sea-level rise.

• Increased biodiversity and cooler temperatures

• More frequent extreme weather events and loss of biodiversity

• Decreased carbon dioxide levels and increased rainfall

• Stabilization of global temperatures and reduced pollution

Describe the impacts of climate change on human populations.

• Increased agricultural productivity

• More stable weather patterns

• Increased frequency and severity of storms

• Decreased global temperatures

What does Figure 2 show about emperor penguins?

• Increase in breeding pairs and stable temperatures

• Decrease in breeding pairs and rising temperatures

• Stable breeding pairs and decreasing temperatures

• Increase in breeding pairs and decreasing temperatures