Question

The utilization of elements and compounds in nature and their subsequent return to the
environment is called
A. Life cycles
B. Cycling pathway
C. Material cycles
D. Recycling

Answer 1

The utilization of elements and compounds in nature and their subsequent return into the environment is known as material cycles. Sometimes it is also called a Biogeochemical cycle.

Step by step answer: Option A- Life cycles
The life cycle is a series of changes in which the organism undergoes different changes but will eventually return to the starting state. A biological life cycle is a series of changes in which that an organism undergoes, returning to the starting state. This concept is similar to those of the life history, development, and ontogeny but differs from them in stressing renewal. Transitions of this form may include growth, asexual reproduction, or sexual reproduction.
Option B- Cycling pathway
The Cyclic pathways will use the last product they had created to re-begin the cycle. For example- The process when carbohydrates are produced by green plants using carbon dioxide and water in the presence of sunlight.
Option C- Material cycles
Material cycles are when there is the utilization of elements and compounds in nature and their subsequent return to the environment. It is also known as a biogeochemical cycle. In these cycles microorganisms are vital. These break down dead matter and release the materials back to the environment.
Option D- Recycling
The conversion of waste into useful forms is called recycling. It means changing materials into new materials and objects that can be used again. It helps in lowering greenhouse gas emissions.
Thus, the right answer is option C- Material cycles

Note: There are different cycles present in our environment that are essential for the smooth functioning and less wastage. Material cycles are one of those important ways as it includes coupling processes of constructive production and regenerative breakdown, materials that can be cycled sustainably in cities.