Why does the temperature decrease as you move from the equotor to the North Pole? (A)Solar radiation does not have to travel as far to Earth's surface and then covers a smaller surface
(b) Solar radiation has farther to travel to Earth's surface and then covers a larger surface
(C) Solar radiation has farther to travel to Earth's surface and then covers a smaller surface
(D)Solar radiation does not have to travel as far to Earth's surface and then covers a larger surface

the fossil record provides evidence of a common ancestor to many species.

rising temperatures because when water vapor in the air is cooled, it condenses. it turns back into a liquid and attaches to dust particles in the air. these very small water droplets group together to form clouds

the nitrogen cycle provides nitrogen to the ecosystem from the atmosphere, ground and oceans. nitrogen is an important component of complex molecules such as amino acids and nucleotides, which lead to the creation of proteins and dna, the building blocks of all life. plants absorb nitrogen in the form of ammonium, nitrate ion and, on rare occasions, as amino acids. animals receive nitrogen necessary for biological processes from feeding on living or dead organic matter.