science

Grade-2

Easy

Question

Oxygen causes ___________.

Chemical weathering
Physical weathering
Mechanical weathering
Biological weathering

hint Hint:

Oxygen causes chemical weathering.

The correct answer is: Chemical weathering

Oxygen is a reactive element.

When oxygen combines with other substances it creates compounds called oxides.
Oxygen reacts with rocks and this process is called oxidation.

_________ 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.

scienceGrade-2

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.

Grade-2

science

Match the column.

Column A
Column B

Biotic factor

        i.            Terrestrial

Abiotic factor

       ii.            Plants

Ecosystem

     iii.            Soil

scienceGrade-2

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Oxygen causes ___________.

Chemical weatheringPhysical weatheringMechanical weatheringBiological weathering

Oxygen causes chemical weathering.

The correct answer is: Chemical weathering

Oxygen is a reactive element.

Related Questions to study

_________ is an example of a chemical weathering.

_________ is an example of a chemical weathering.

Breaking rock into smaller pieces is an example of _______.

Breaking rock into smaller pieces is an example of _______.

_________ causes weathering of rocks.

_________ causes weathering of rocks.

Physical weathering is also called________.

Physical weathering is also called________.

________ is a slow process that shapes the Earth.

________ is a slow process that shapes the Earth.

Which of the following is also called the blue planet?

Which of the following is also called the blue planet?

In chemical weathering________.

In chemical weathering________.

In physical weathering, the ________does not take place.

In physical weathering, the ________does not take place.

______ is the place where we live.

______ is the place where we live.

Which of the following statement is correct?

Which of the following statement is correct?

Identify the type of ecosystem.

Identify the type of ecosystem.

Find the odd one out.

Find the odd one out.

This is the image of

This is the image of

Match the column. Column A Column B Biotic factor i. Terrestrial Abiotic factor ii. Plants Ecosystem iii. Soil

Match the column. Column A Column B Biotic factor i. Terrestrial Abiotic factor ii. Plants Ecosystem iii. Soil

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Chemical weathering
Physical weathering
Mechanical weathering
Biological weathering

Match the column.

Column A
Column B

Biotic factor

i. Terrestrial

Abiotic factor

ii. Plants

Ecosystem

iii. Soil

Match the column.

Column A
Column B

Biotic factor

i. Terrestrial

Abiotic factor

ii. Plants

Ecosystem

iii. Soil