science
Grade-2
Easy
Question
Which type of weathering is present in the image?
- Physical
- Mechanical
- Chemical
- Biological
Hint:
The given image shows biological weathering
The correct answer is: Biological
- Weathering is the process of braking down of rock into smaller pieces.
- biological Weathering occurs when plants break down rocks with roots.
- It is a slow process.
- Plants , animals, fungi ,microwave all cause biological Weathering.
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Read the sentences and select the correct option.
Sentence I: Freezing and melting are common in desert areas.
Sentence II: Water goes into the cracks and breaks the rocks.
Read the sentences and select the correct option.
Sentence I: Freezing and melting are common in desert areas.
Sentence II: Water goes into the cracks and breaks the rocks.
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_________is responsible for chemical weathering
_________is responsible for chemical weathering
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Volcanos and erosion are fast events that shape the Earth.
Volcanos and erosion are fast events that shape the Earth.
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________ affects the rate of weathering.
________ affects the rate of weathering.
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The process by which rocks are broken down into smaller pieces is called_________.
The process by which rocks are broken down into smaller pieces is called_________.
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Weathering causes__________.
Weathering causes__________.
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Oxygen causes ___________.
- When oxygen combines with other substances it creates compounds called oxides.
- Oxygen reacts with rocks and this process is called oxidation.
Oxygen causes ___________.
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- When oxygen combines with other substances it creates compounds called oxides.
- Oxygen reacts with rocks and this process is called oxidation.
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_________ is an example of a chemical weathering.
- The disintegration or erosion of rocks by chemical reactions.
- It is caused by rain water reacting with the mineral grains in rocks to form (clays) and soluble salts.
_________ is an example of a chemical weathering.
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- The disintegration or erosion of rocks by chemical reactions.
- It is caused by rain water reacting with the mineral grains in rocks to form (clays) and soluble salts.
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Breaking rock into smaller pieces is an example of _______.
Breaking rock into smaller pieces is an example of _______.
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_________ causes weathering of rocks.
_________ causes weathering of rocks.
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Physical weathering is also called________.
Physical weathering is also called________.
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________ is a slow process that shapes the Earth.
________ is a slow process that shapes the Earth.
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Which of the following is also called the blue planet?
Which of the following is also called the blue planet?
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In chemical weathering________.
In chemical weathering________.
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