The number one factor for determining what living things can survive in a body of water is

The number one factor for determining what living things can survive in a body of water is the salinity of the water.

Explanation:

Salinity can be described as the amount of salt present in any substance. Some of the natural habitats like seawater and oceans have high amounts of salts in it. The organism that would be best suited to adapt to saline conditions would be able to live in such conditions. Those organisms that cannot withstand the salty conditions will either migrate or die. Hence, salinity of a habitat plays a huge role in determining which organisms would survive in the particular area.

primary succession occurs in essentially lifeless areas regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier. secondary succession occurs

the correct answer is b