What happens if 4 bears try and live in the same area?

there is two answers the bear could fight or be friend if they are the same race

Explanation:

What could happen if this is if they are different bears, what could happen is that a fight is started to see who gets that area, but if they are bears of the same race, for example a brown bear, as much as possible it would be that they will not fight and were friends or another probability would be that they will fight

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.