Nitrogen is special because it is necessary for growth and reproduction. It's needed for plants and animals to survive. The main function for the atmosphere i believe is to give oxygen and nitrogen.
The phenomenon is called an equinox. More specifically when it is September it is called the autumnal equinox ,and when it is March it is called the vernal equinox. Hope this helped!
They also show the number of dependents (children and, sometimes, elderly people) and general structure of the population at any given moment.
it compares and contrast the age of th female and male where it typically forms the shape of a pyramid when the population is growing which can give you a general idea on both genders
it can help see who (female or male) are the most type in that area
Natural selection is when the organisms that have the better adaptation so they survive. In this case, the green was the better adaptation so they lived.
