Primary succession is a method of fertilizing soil that was barren and had never supported plant life, for example soil left over by a moved glacier of lava.
1 answer is true
2 answer is d
3 answer is true
Blood typing is important in the blood transfusion.
Losing too much blood will result in death. The easiest way to prevent death by loss of blood would be doing a blood transfusion. Blood transfusion is injecting blood from other people to a patient that losing too much blood.
Human has antigen in their blood that can be recognized as a foreign object and get attacked. If you give someone a blood that has similar antigen which he has, the blood will not be recognized as foreign material. But if you do, the antigen in the blood will induce hypersensitivity reaction.
About 1027 kg/m^3. <span>The density of pure water is </span><span>1000 kg/m3</span><span>. Ocean water is more dense because of the salt in it. Density of ocean water at the sea surface is </span><span>about 1027 kg/m3</span><span>. There are two main factors that make ocean water more or less dense than </span><span>about 1027 kg/m3</span><span>: the temperature of the water and the salinity of the water</span>
