Answer:
A
Explanation:
Water pollution is a concern because of the lack of waste treatment options. Sewage and industrial waste have been dumped into water sources. Also of concern is the limited supply of freshwater. With Dubai's large population, desalination processes have become necessary to provide people with drinking water.
These units of hereditary information are called “genes”.
The Serengeti plain is about 12,000 square miles and can be called an endless huge plain.
down because they wouldn't bring as many sword fish if the price wasn't high