Answer:
Snow line
Explanation:
The lowest elevation at which layer of a permanent snow occurs in the summer is known as the snow line.
Snow line is defined as the boundary between a snow covered area and a snow free one.
The lowest level connotes with the level of snow during the summer because the temperature is warm at this period in time. Below this level, all the glaciers are frozen and will not melt in any way.
During winter, the snow line can rise due to drop in temperature.
Answer:xeropthalmia
Explanation: Xeropthalmia also known as dried eyes is condition caused by deficiency of vitamin A.it affects the ability to produce tears.this is characterised by changes in the cornea that can eventually lead to corneal ulcers,scarring and blindness.
Vitamin A is a fat soluble vitamin.Retinol and retinal are types of vitamin A compounds.retinol is necessary for the formation of keratin and a healthy skin.
Vitamin A functions to provide healthy eyes,skin,and bones.
It's natural sources are liver,eggs dark green vegetables,cheese etc.
Vitamin A deficiency causes night blindness .it can also lead to changes in the conjunctiva called Bitot's spots
Answer:
I believe dimples is the dominant trait [sorry if wrong]
CNS contains brain and spinal cord