A decomposition reaction occurs when ionic or covalent bonds are broken and elements and or ions or simpler molecules are formed.
The first was that all organisms have descended with modification from common ancestors.
The second was that the major agent of modification is natural selection acting on variation between individuals.
True.......................................
The correct answer is D. Hot and Arid.
This is because the roots of the plants wouldn't need long roots to find a cool wet place if the other conditions of A. B. or C. we're present.