B) population because there is more than one in one species and types
The media plays a very important role as a source of information,education and entertainment, whether it is radio, movies or TV. It accommodates the world in to a single village which is saturated of media-information, that cause us to wear what we do, drink what we drink and eat what we eat.
The elevation changes of the mountain that cause different climates and altitudes
The law of conservation of energy is a law of science that states that energy cannot be created or destroyed, but only changed from one form into another or transferred from one object to another.
For example: A bowling ball hitting bowling pins. The energy is transferred and no energy is lost.
I hope this helps :)
