Question

Which best describes the negative impact of human water use?

Food can be produced in dry areas.
Increased runoff carries fertilizers.
Food can be produced through drought years.
Water can improve the livelihood of farmers.

Answer 1

The statement that best describes the negative impact of human water use is: Increased runoff carries fertilizers. Fertilizers create algae in streams and rivers, causing large "dead zones".

Answer 2

Answer: Option b

Step-by-step explanation: The negative impact of over use of water is that it carries fertilizers along with it.

More water in the agricultural field carries carries fertilizers, pesticides and agricultural wastes along with it into the nearby water bodies.

This increases the growth of algae in the the water bodies which depletes the oxygen level of the water and the other organism die due to low levels of oxygen in it.