Weathering

Front

What type of weathering caused the rust on a metal trash can? Options: Mechanical weathering, Wind weathering, Chemical weathering, Erosion weathering

Back

Chemical weathering

Front

What is likely to cause cracks on the sidewalk? Repeated freezing and thawing of water, Tree roots or plant roots growing bigger, Both and A and B, Neither A or B

Back

Both and A and B

Front

What human activities can increase the rate of weathering? Options: Increasing the amount of acid rain, Paving over large portions of land, Strip mining and agriculture

Back

All of the other answers.

Front

Which diagram represents mechanical weathering?

Back

F

Front

Which type of climate would cause the greatest rate of weathering?

Back

Warm and humid (wet)

Front

A student hiking in a rock area on a mountain notices that wide, deep cracks have formed in some of the large rocks. Some of the cracks are so large that the rocks have broken apart. Which process most likely caused these rocks to crack and creak?

Back

Water freezing and thawing

Front

The surfaces of old concrete statues are often covered with small holes or pits. Which of these MOST LIKELY causes these holes or pits?

Back

The concrete is chemically weathered by acid rain.

Front

When Joe saw the Rocky Mountains for the first time, he exclaimed, "These mountains are much younger than ours back East!" Which feature supports his conclusion that the Rockies were relatively young mountains? Options: The sedimentary layers are still exposed, They have rounded tops, They have sharp peaks, Weathering has not yet hardened the rock

Back

They have sharp peaks

Front

What is the weathering process in which rocks are broken down into smaller pieces (sediments) and do not change the rock composition?

Back

Mechanical weathering

Front

Which of the following is the most important agent of chemical weathering to form this cave? Water - It can carry acid and dissolve rock, Erosion - Moves the rocks from one place to another, Wind - It displaces rocks, Exfoliation - New cracks give chemical reactions the chance to operate

Back

Water - It can carry acid and dissolve rock