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Which of the following is/are examples of chemical weathering?
1. frost action on rocks.
2. repeated wetting and drying.
3. oxidation of minerals in a rock
Select the correct answer using the codes given below.

1 and 2 only
1 and 3 only
3 only
1, 2 and 3
Explanation:
Chemical weathering is what happens when rocks are broken down and chemically altered. Frost action and repeated wetting and drying are the process of physical weathering. Oxidation of minerals in rocks by moisture is chemical weathering. Another process of chemical weathering would be decomposition by organic acids
Additional Questions

Which of the following comes under the phenomena of mass movement?
1. soil creep
2. weathering
3. landslide
Select the correct answer using the codes given below.

Answer

The rivers in India that flows through a rift valley are
1. Luni
2. Damodar
3. Tapi
4. Betwa
Select the correct answer using the codes given below.

Answer

What could be the main reason/reasons for the formation of African and Eurasian desert belt?
1. It is located in the sub-tropical high pressure cells.
2. It is under the influence of warm ocean currents.
Which of the statements given above is/are correct in this context?

Answer

An artificial satellite orbiting around the Earth does not fall down. This is so because the attraction Of Earth

Answer

What is die difference between asteroids and comets?
1. Asteroids are small rocky planetoids, while comets are formed of frozen gases held together by rocky and metallic material.
2. Asteroids are found mostly between the orbits of Jupiter and Mars, while comets are found mostly between Venus and Mercury.
3. Comets show a perceptible glowing tail, while asteroids do not.
Which of the statements given above is/are correct?

Answer

Which one of the following is the characteristic climate of the Tropical Savannah Region?

Answer

Between India and East Asia, the navigation-time and distance can be greatly reduced by which of the following?
1. Deepening the Malacca straits between Malaysia and Indonesia.
2. Opening a new canal across the Kra isthmus between the Gulf of Siam and Andaman Sea.
Which of the statements given above is/are correct?

Answer

Which one of the following pairs is correctly matched?
Geographical Feature Region

Answer

The most important fishing grounds of the world are found in the regions where:

Answer

Which of the following is/are unique characteristic/characteristics of equatorial forests?
1. Presence of tall, closely set trees with crowns forming a continuous canopy
2. Coexistence of a large number of species
3. Presence of numerous varieties of epiphytes
Select the correct answer using the code given below:

Answer
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