Question

1.what are the 5 cycles that the chnops elements go through? 2. which 2 elements are covered in the water cycle? 3. respiration, photosynthesis, combustion, extraction, and burial are all part of what cycle? 4. nitrogen fixation consists of _______ & _______ that take unusable nitrogen and make it usable.

Explanation:

1. The CHNOPS elements (Carbon, Hydrogen, Nitrogen, Oxygen, Phosphorus, Sulfur) go through the water cycle, carbon cycle, nitrogen cycle, phosphorus cycle, and sulfur cycle.
2. The water cycle involves hydrogen and oxygen as water is \(H_2O\).
3. Respiration (\(C_6H_{12}O_6+6O_2

ightarrow6CO_2 + 6H_2O\)), photosynthesis (\(6CO_2+6H_2O
ightarrow C_6H_{12}O_6 + 6O_2\)), combustion (e.g., \(C + O_2
ightarrow CO_2\)), extraction (mining carbon - containing minerals like coal), and burial (carbon - rich organic matter being buried) are part of the carbon cycle.

1. Nitrogen fixation consists of bacteria (e.g., Rhizobium) and lightning. Bacteria in the soil or in symbiotic relationships with plants convert \(N_2\) to ammonia (\(NH_3\)). Lightning provides enough energy (\(N_2+O_2

ightarrow 2NO\) under high - energy conditions) to start the process of making nitrogen more reactive.

Answer:

1. Water cycle, carbon cycle, nitrogen cycle, phosphorus cycle, sulfur cycle
2. Hydrogen and oxygen
3. Carbon cycle
4. Bacteria and lightning