Answer:
sunburn is caused by too much exposure to ultraviolet rays.
Explanation:
Melanin is the dark pigment in the skin's outer layer that gives skin its normal color. When your skin face too much exposure to sun. UV rays in sun destroys the melanin due too which sunburn is caused
The correct answers are under predation and under rainfall.
The reason for migration can be rainfall,
because some herbivores follow the rain to new sources of water and grass. Also, predators migrate because they follow some animal migrants that are used for food, so predation is one of the reasons that lead to migration.
chemicals and minerals dissolved in water
The energy in food substances is released via chemical reactions that take place within the mitochondria which are present in some single celled organisms.
HEMOCYTOBLAST
hope it will help you☺
