Answer:
A(erosion)
Explanation:
This is because of excess rain fall and excess wind.
that is why the earth surface is worns out.
for example; if u put a bowl of sand on a table and put a fan beside it, on d fan at d lowest number. u will realise that
the sand will still remain but not as much as it was, but if u increase the fan u will see that d sand begin to decrease gradudually ontill d surface of d table shows.
if u are reading this don't mind my English.
