Cycle

Humans burn fossil fuels and wood, releasing carbon dioxide into the atmosphere. This carbon dioxide is then absorbed by trees for photosynthesis. These processes are contributory to which chemical cycle?

• The carbon cycle

• The water cycle

• The nitrogen cycle

• The phosphorous cycle

Which cycle are fossil fuels (oil, coal, natural gas) part of?

• carbon

• water

• nitrogen

• phosphorus

Identify the cycle pictured.

• The Water cycle

• The Carbon cycle

• The Nitrogen cycle

• The Phosphorus cycle

Which cycle involves the process of evaporation, condensation, and precipitation?

• The water cycle

• The carbon cycle

• The nitrogen cycle

• The phosphorus cycle

In which cycle do plants absorb carbon dioxide during photosynthesis and release oxygen?

• The carbon cycle

• The water cycle

• The nitrogen cycle

• The sulfur cycle

Which cycle is crucial for the production of amino acids and proteins in living organisms?

• The nitrogen cycle

• The carbon cycle

• The water cycle

• The oxygen cycle

Which cycle involves the movement of phosphorus through the lithosphere, hydrosphere, and biosphere?

• The phosphorus cycle

• The carbon cycle

• The nitrogen cycle

• The sulfur cycle

Which cycle is primarily driven by the sun's energy and involves the movement of water through the atmosphere?

• The water cycle

• The carbon cycle

• The nitrogen cycle

• The phosphorus cycle

Which cycle is essential for the formation of DNA and RNA in living organisms?

• The phosphorus cycle

• The carbon cycle

• The nitrogen cycle

• The sulfur cycle

Which cycle involves the conversion of nitrogen gas from the atmosphere into ammonia by bacteria?

• The nitrogen cycle

• The carbon cycle

• The water cycle

• The phosphorus cycle