Unit 3 Lesson 3 Assessment

What causes weathering, erosion, and deposition in dry, open areas?

• Animals

• Plants

• Wind

• Water

What is sand made up of?

• Dust particles

• Clay

• Organic material

• Small bits of weathered rocks

How does wind cause weathering in deserts?

• By carrying water droplets

• By blowing sand and other material against rocks

• By freezing and thawing

• By growing plants

What is the Delicate Arch in Utah made of?

• Granite

• Limestone

• Basalt

• Sandstone

The same process of weathering that creates arches, also ______ .

• makes the arches bigger until it is a solid rock again

• destroys arches by making them thinner until they fall

• doesn't do anything else, just makes an arch

• moves the arch by keeping the entire thing together

What happens to sand dunes as wind blows?

• They turn into rocks

• They disappear

• They move one grain at a time

• They stay in the same place

What can wind not move?

• Dust

• Sand

• Large rocks and boulders

• Small pebbles

What happens during a dust storm?

• Wind blows dust from a dry region

• Rain washes away dust

• Rocks melt

• Plants grow rapidly

What was the Dust Bowl?

• A period of heavy rainfall

• A large earthquake

• A time of severe wind erosion in the Great Plains

• A volcanic eruption

What can wind erosion damage?

• Only animals

• Only bodies of water

• Plants and buildings

• Only rocks