Answer:
It is essential for all living things. Fixation: In order for organisms to use atmospheric nitrogen (N2), it must be “fixed” or converted into ammonia (NH3).
Explanation:
Water. the only 4 macromolecules are nucleic acid, carbohydrate, lipids, and protein
Any astronomical body that revolves around a larger body is called SATELLITE. <span>There are two basic types of satellite, natural and artificial satellites. Natural satellites are those that occur naturally such as the moon and the earth while artificial satellites refers to man made satellites. Man made satellites are usually designed for collection of data and for communication. Artificial satellites have the ability to collect more information in a very short time compared to ground instruments. There are many different types of artificial satellites in space.</span><span />