corrosion vs erosion

The sources of sight pollution include the increasing number of heaps of garbage, huge open landfills and soil __________.
Choose one answer.

a. abrasion

b. fusion

c. corrosion

d. erosion

help me. what is the answer for this question? i think the answer i s D. but corrosion and erosion seems similar.

‘erosion’ is the term used for the gradual wearing away of earth.
‘corrosion’ relates to an acidic type of wearing away.