Primary succession begins on rock formations, such as volcanoes or mountains, or in a place with no organisms or soil.
Although they can damage and burn the skin year- round, the most intense UVB rays hit the continental United States between April and October from 10 AM to 4 PM. UVA rays have a longer wavelength and can penetrate into the skin's dermis (inner layer).
Answer:False
Explanation:
Rh incompatibility,or Rh disease,occurs when a woman with Rh negative blood cells is exposed to Rh positive blood cells of the fetus and this leads to the development of Rh antibodies.This may lead to further complications in pregnancy such as fetomaternal haemorrhage.
Answer:I believe it to be A
Explanation: