3.6 quiz

What percentage of Earth's surface is covered by glaciers?

• 5%

• 10%

• 20%

• 50%

What happens to glaciers as Earth's temperature continues to rise?

• They get larger

• They move faster

• They get smaller

• They cover more land

What evidence do glaciers leave behind as they erode land?

• Boulders

• Volcanic ash

• Clues in the landforms

• Fossils

How many years ago was most of Europe covered with glaciers?

• 1,000 years ago

• 5,000 years ago

• 10,000 years ago

• 12,000 years ago

What causes the water to build up on the ground during winter months to form glaciers?

• Rainfall

• Snowfall

• Hailstorms

• Rivers overflowing

Why do glaciers start near the poles and expand away from them?

• Because of the Law of Lateral Continuity

• Because of the gravitational pull

• Because of the Earth's rotation

• Because of the magnetic field of the Earth

Why do the summers near the North and South poles not last very long?

• Because of the Earth's tilt

• Because of the high altitude

• Because of the ocean currents

• Because the temperatures rise and the frozen water melts quickly

What happens to the layers of compacted snow and ice over many years?

• They become less thick

• They melt completely

• They become more thick

• They sublimate into the atmosphere

How many main types of glaciers are there?

• One

• Two

• Three

• Four

What is a continental glacier?

• A glacier that is found only in valleys

• A glacier that is long and narrow

• A glacier that is spread out over a large area and may cover entire continents

• A small glacier that forms on mountain tops