Melanoma is a skin cancer that occurs in the melanocyte cells of the body. what could be a cause of melanoma? a) vitamin a deficiency b) antibiotics that destroy pigments c) a genetic mutation in somatic cells d) clotting of blood in the melanocyte cells

The correct answer is (c) A genetic mutation in somatic cells.

Melanoma is the skin cancer caused by the mutation in the somatic cells of the body. It is also known as malignant melanoma, which develops  from the pigment containing cells known as melanocytes. The harmful rays of the sun contains UV rays that is responsible for causing mutation in the cells. It occurs basically in the skin but can rarely occur in mouth, intestines and eyes. Some common symptoms are sore that do not heal, redness on skin, change in texture of existing mole.

answer; i believe the answer is hydraulic action;

d concave shape of wave rock

explanation:

the concave shape of wave rock is a very good evidence that supports the evolution of earth due to chemical weathering. if we talk about structure of   wave rock, studies have estimated that it is around 2.7 billion years old. it also serves as the foundation of evidence that it was the place where australian continent began to form.

how the structure of wave rock was created?

studies suggest that structure of wave rock was created when the surrounded area was started to weather due to which deposition of material started on the part of land which now contains wave rock.

the structure of wave rock is considered to be one of the best-known landforms in australia. at the height of around 15 cm, there can be found flared slopes which formulate the margins of hyden rock. it is now assumed by geologists that wave rock was created by subsurface water-induced weathering and not by glaciers, waves or wind.

due to deposition of material over the period of long time, the wave rock became tougher and tougher due to weathering from surrounding terrain. this makes it a physical evidence that supports   the evolution of earth due to chemical weathering.

hope it !