4 Melting Ice

What are ice sheets and glaciers made of?

• Fallen snow compressed into ice

• Frozen rainwater

• Solidified ocean water

• Condensed fog

Where are ice sheets and glaciers located?

• In the ocean

• On land

• In the atmosphere

• Underground

What has happened to the Greenland and Antarctic ice sheets?

• They have increased in mass.

• They have decreased in mass.

• They have remained the same.

• They have disappeared completely.

Which polar areas have experienced more warming?

• Southern polar areas

• Northern polar areas

• Both have experienced the same warming

• Neither have experienced warming

What role does the great ocean conveyor belt play in the global climate?

• It distributes heat around the world.

• It cools down the polar regions.

• It increases the salinity of the oceans.

• It prevents ocean currents from mixing.

How can changes in oceanic currents impact global climate?

• They can cause more rainfall in deserts.

• They can have a big impact on global climate, especially in coastal regions.

• They can make the equator colder.

• They can stop hurricanes from forming.

What is one consequence of glaciers melting?

• Decrease in sea level

• Formation of deserts

• Rise in sea level

• Increase in forest area

What happens to the albedo when glaciers shrink and more land is exposed?

• It increases

• It decreases

• It remains the same

• It fluctuates randomly

What is the result of increased solar energy absorbance due to shrinking glaciers?

• Decreased temperatures

• Increased temperatures

• No change in temperature

• Random temperature changes

Where does sea ice form, grow, and melt?

• In the ocean

• On land

• In rivers

• In lakes