In a beach ecosystem, what can limit growth of organisms?

The abiotic factor such as ocean and rock plays a vital role in reducing the growth of the organism in beach ecosystem.

The two main components of beach ecosystem are rock and water. With help of these two producers develop and later consumers start to invade this ecosystem. As long as the raw material is available, the production occurs. Likewise, as long as the major components which are involved in nutrient production are existing in the ecosystem, organisms keeps on reproducing and continues to grow.  

When these factors are disturbed due to some kind of unexpected happening due to man or nature it will inhibit or limit the growth of the organism.

b is the best answer for this question.

not too sure but maybe in the hot springs.