Consider the following statements and choose correct option from codes given below 1 Deep chemi...........

Geography World - Soil and Vegetation

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Consider the following statements and choose correct option from codes given below:

1. Deep chemical decay of rocks is one of the outstanding features of humid tropical regions.

2. Intensity of chemical weathering depends to a large degree upon abundance of water and high air temperatures.

Select the answer from the codes given below:

1 only

2 only

Both 1 and 2

Neither 1 nor 2

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Explanation:

Chemical weathering changes the composition of rocks, often transforming them when water interacts with minerals to create various chemical reactions. Chemical weathering is a gradual and ongoing process as the mineralogy of the rock adjusts to the near surface environment. New or secondary minerals develop from the original minerals of the rock. In this the processes of oxidation and hydrolysis are most important. Chemical weathering is enhanced by such geological agents as the presence of water and oxygen, as well as by such biological agents as the acids produced by microbial and plant-root metabolism.