If a local climate grows wetter and a river splits the habitat in two, a single population of organisms can be split into two separate populations. These populations will have different evolutionary paths over time, to the point where they may no longer be able to interbreed. What is this an example of

answer; i believe the correct answer to the above question is ( friction)

the man is bald so he has no hair to get wet

bc blah

explanation:

bc blah

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.