Earths Changing Surface Test 2-B

An avalanche is an example of which process?

• Weathering
• Erosion
• Deposition
• Volcanic Eruption

How does freezing water cause the weathering of rocks?  The freezing water—

• keeps the rocks in place.
• makes the rocks last longer.
• expands cracks and breaks rocks.
• causes rocks to fall in landslides.

Over long periods of time, deposition may change the Earth’s surface by _____.

• forming new land features.
• breaking down large rocks into smaller ones.
• washing away beaches.
• moving topsoil.

What is the process that picks up and moves weathered rocks?

• Deposition
• Landslide
• Weathering
• Erosion

Deposition changes the Earth’s surface because bits of broken rock and soil _____.

• stop rivers from flowing.
• make rich farmlands.
• are dropped in new places.
• move very slowly.

An event in time when large amounts of animals and plants die off

• geologic time
• precambrian
• period
• mass extinction

Which segment of time is the smallest?

• Eon

• Era

• Period

• Epoch

What is the longest unit of time?

• Eon

• Era

• Period

• Epoch

age of mammals that lasted from 65 million years ago to the present; the era of modern life

• Cenozoic Era

• Mesozoic Era

• epoch

• period

a historical sequence of life indicated by fossils found in layers of Earth's crust

• fossil

• geologic time scale

• species

• fossil record