AP BIOLOGY

Detailed explanation-1: -The ways in which an element-or compound such as water-moves between its various living and nonliving forms and locations in the biosphere is called a biogeochemical cycle. Biogeochemical cycles important to living organisms include the water, carbon, nitrogen, phosphorus, and sulfur cycles.

Detailed explanation-2: -This biogeochemical cycle moves through the rocks, water bodies and living systems. Sulphur is released into the atmosphere by the weathering of rocks and is converted into sulphates. These sulphates are taken up by the microorganisms and plants and converted into organic forms.

Detailed explanation-3: -The same atoms are recycled over and over in different parts of the Earth. This type of cycle of atoms between living and non-living things is known as a biogeochemical cycle. All of the atoms that are building blocks of living things are a part of biogeochemical cycles.

Detailed explanation-4: -Human activities have greatly increased carbon dioxide levels in the atmosphere and nitrogen levels in the biosphere. Altered biogeochemical cycles combined with climate change increase the vulnerability of biodiversity, food security, human health, and water quality to a changing climate.

Detailed explanation-5: -The cycling of oxygen, nitrogen, water vapor, and carbon dioxide, as well as the trace gases-methane, ammonia, various oxides of nitrogen and sulfur, and non-methane hydrocarbons-between the atmosphere and the biosphere results in relatively constant proportions of these compounds in the atmosphere over time.