In which part of the body would melanoma develop? lungs skin lymph nodes reproductive cells

-Skin.

Explanation:

Melanoma can be defined as a type of skin cancer, which develops in pigment cells or melanocytes.

The main cause for melanoma is exposure to sun that leads to DNA damage and development of cancerous cells. People having more than fifty moles have higher chances of having melanoma as moles can transformed into malignant tumors.

Thus, the correct answer is 'skin.'

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.