Which statement best explains the difference between water temperature at the poles and water temperature at the equator?

O A. The water is denser and saltier near the equator, so it holds more
heat.
B. The sun's rays strike the water at an angle at the poles.
c. Deep sea vents pump steam into the conveyor belt near the
equator.
D. Due to Earth's rotation, gyres near the poles flow clockwise.

the answer is b.) hydrogen bonds between bases.

idk im sorry.

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.