The correct answer is C) Organisms that are fit, survive and reproduce.
Theory of evolution states that the organisms which are fit will survive and they will be able to increase their generations through reproduction. An organism is considered as fit when it is able to survive in the unfavorable environmental conditions by changing itself through adaptations. Such organism will be able survive and reproduce.
In contrast to this, the organisms which are are unable to adapt the adverse environment will tend to extinct from the earth. Such organisms are considered as unfit.
To store this important material, DNA molecules are tightly packed around proteins called histones to make structures called chromosomes. The DNA that contains your genes is stored in your cells in a structure called the nucleus.
Any form of precipitation, including rain, snow, hail, fog, or dew, that is high in acid pollutants, especially sulfuric and nitric acid. Acid precipitation has a pH of less than 5.6 (the normal acidity of unpolluted atmospheric water) and is often less than pH 5.0. Air pollution can kill trees and can cause chronic disease
