Humans are organisms that live on the surface of the Earth. In recent years, many products that people use have released chemicals into the air. This has slightly changed the composition of the air that surrounds the planet.

Which statement describes this interaction?

the match lol

c. establishing proper sleep hygiene

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.