Fill In the Blanks

Question

The ____ of these elements is critical to maintaining life on Earth. The carbon cycle, the nitrogen and water cycle all have important ____ phases. The ____ cycle lacks a true ____ phase, and is slow and depends on the water cycle, also called the _____ cycle.


lipids
elements
hydrologic
atmospheric
carbohydrates
gravitational
atmospheric
phosphorus
cycling
biogeochemical
nitrogen

Answer 1

The cycling of these elements is critical to maintaining life on Earth. The carbon cycle, the nitrogen cycle, and the water cycle all have important cycling phases. The phosphorus cycle lacks a true atmospheric phase, and is slow and depends on the water cycle, also called the hydrologic cycle.