question_answer

Consider the following statements and select the correct answer using the code given below:

1. Plants and animals play a variety and relatively minor roles in mechanical weathering.

2. Rodents mechanically mix the soil and loose rock particles.

3. The roots of trees widen cracks and contributes to the rock break down

A) 1, 2 and 3 are correct    

B)        2 and 3 are correct

C)        1 and 2 are correct       

D)        1 and 3 are correct