Mechanical weathering a. breaks apart rock by physical processes b. occurs when chemical reactions dissolve or change the minerals in rocks c. occurs when the iron is exposed to oxygen and water d. none of the above

the answer is option A.

Explanation:

Mechanical weathering is additionally alluded to as Physical Weathering.  It occurs because of different changes in the earth like temperature changes, water or rain on the stones makes splits that breaks them. Mechanical weathering is the way toward breaking enormous rocks into minimal ones. This procedure as a rule occurs close to the surface of the planet. Temperature likewise influences the land. The cool evenings and hot days dependably purpose things to extend and contract. That development can make rocks split and break separated.

affects the water bodies: excessive use of fertilizers causes eutrophication. the fertilizers which are used on plants affect the quality of land on which it is used, further causing erosion of soil. the fertilizers used on plants contain harmful chemical fumes which affect the environment.

high growth (apex)