Ayoung man comes to the clinic with an extremely pruritic rash over his knees and elbows, which has come and gone for several years. it seems to be worse in the winter and improves with some sun exposure. examination reveals scabbing and crusting with some silvery scales. the nurse also notices small "pits" in the nails. what would account for these findings?

-hails tea

explanation:

-t poses

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.