Question

which stage do you are​

Answer 1

Answer:

Water can be contaminated in several ways. It can contain microorganisms like bacteria and parasites that get in the water from human or animal feces. It can contain chemicals from industrial waste or from spraying crops. Nitrates used in fertilizers can enter the water with runoff from the land.

Answer 2

Answer:

they are leaders....

Explanation:

Select the row number to select the entire row. Or click on any cell in the row and then press Shift + Space. To select non-adjacent rows or columns, hold Ctrl and select the row or column numbers.