Under what conditions can carrying capacity for a population reach equilibrium?

A. When food, water, and space used by a population stay stable over
time
B. When the population is in competition with a population of another
species
C. When the death rate equals the birth rate for a population
D. When the number of individuals migrating out of a population
equals the number moving in

A. When food, water and space used by a population stay stable over time.

Explanation:

I majored in Biology

estuaries are the partially enclosed coastal bodies of brackish water formed at the mouth of sea where river meets an ocean. it is a transition zone between river and sea water so estuaries are influenced to both marine environment such as tides, waves and to riverine such as flow of fresh water and sediments. the mixing of sea and fresh water provide high level of nutrients, making estuaries a high product habitats.

many estuaries suffers degradation from a variety of human activities like erosion from deforestation, overgrazing, overfishing, drainage and eutrophication.

so from the above statement answers will be

1. false as estuaries are formed due to both brackish and freshwater.

2.true, due to high productivity estuaries are breeding ground for many marine species.

3. direct and indirect activities of man that contribute to pollution and deposition of sediments.