What should I do to decrease the temperature from the Cryogenian period? ​

Cryogenian Period, second of three periods of the Neoproterozoic Era of geologic time, extending from approximately 720 million to approximately 635 million years ago. The Cryogenian Period followed the Tonian Period (which lasted from 1 billion to about 720 million years ago) and was succeeded by the Ediacaran Period (approximately 635 million to approximately 541 million years ago). The beginning of the Cryogenian Period was defined arbitrarily: that is, it corresponded to the onset of the first glacial episode to follow the date of 750 million years ago.

is this for the e2020 class

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.