Question

B.
Fill in the blanks :
1.
Sedimentary rocks are formed in horizontal layers called______
2.
Forests on mountains are home to a number of
_______and_______
3.______areas are located in these.
4.______and_______are carried out by running water, ice and wind.
5._______are very useful for the economic growth of a country.​

Answer 1

Please elaborate the 3rd answer