Question

I. Choose the letter of the correct answer. Write your answers in your answer sheet provided/ answer it in your paper.
______ 1. It is the breaking down of rocks into fragments.
A. Erosion C. Run off
B. Flooding D. Weathering
______ 2. A type of weathering that involves change in the composition of rocks.
A. chemical C. both chemical and mechanical
B. mechanical D. none of the above
______ 3. What do you call the process by which humans extract stones from the mountains for construction purpose?
A. digging C. weathering
B. flattering D. quarrying
______ 4. What happen to rock when it is exposed to higher temperature?
A. contracts C. expands
B. evaporates D. sinks
______ 5. An open-pit mine where rocks can be extracted.
A. landfill C. reservoir
B. open-field D. quarry

Answer 1

Answer:

Choose the letter of the correct answer. Write your answers in your answer sheet provided/ answer it in your paper.

Weathering 1. It is the breaking down of rocks into fragments.

A. Erosion C. Run off

B. Flooding D. Weathering

Chemical 2. A type of weathering that involves change in the composition of rocks.

A. chemical C. both chemical and mechanical

B. mechanical D. none of the above

Quarrying 3. What do you call the process by which humans extract stones from the mountains for construction purpose?

A. digging C. weathering

B. flattering D. quarrying

Expands 4. What happen to rock when it is exposed to higher temperature?

A. contracts C. expands

B. evaporates D. sinks

Quarry 5. An open-pit mine where rocks can be extracted.

A. landfill C. reservoir

B. open-field D. quarry

Explanation:

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Answer 2

The answers are as follows:

1. The breaking down of rocks into fragments is D. Weathering.

• Weathering is the process in which rocks and minerals are disintegrated into fragments on the surface of Earth by different processes such as physical, chemical and biological.

2. A type of weathering that involves change in the composition of rocks is A. chemical.

• Chemical weathering is the process in which composition of rocks is changed by oxidation, carbonation and hydrolysis reactions. The chemical reactions that occur within the rocks, change the chemical nature of rocks and transform them into new rocks.

3. The process by which humans extract stones from the mountains for construction purposes is D. quarrying.

• Quarrying is the process in which rocks and minerals are extracted from mountains or rock surfaces to use for construction purposes.
• Clay, sand, gravel etc. are obtained by quarrying process.

4. When rock is exposed to higher temperature, it C. expands.

• The temperature also affects the rate of weathering. When rocks are exposed to higher temperatures, they expand and break into fragments. Hence, high temperature increases chemical weathering.

5. An open-pit mine where rocks can be extracted is D. quarry.

• Quarries are open-pit mines from which rocks such as sand and gravel are extracted. The rocks are found near the surface and are used for construction purposes.