Circulation of elements in ecology is called

Options

A. Biological chemical cycle
B. Geological cycle
C. Geochemical cycle
D. Biogeochemical cycle

Answer

**Step-by-Step Solution:**

1. **Understanding the Question:** The question asks about the term used to describe the circulation of elements in ecology.

2. **Reviewing the Options:** The options provided are:
- A) Biological chemical cycle
- B) Geological chemical cycle
- C) Geochemical cycle
- D) Biogeochemical cycle

3. **Defining Each Option:**
- **Biological Chemical Cycle:** This cycle involves the transport of chemicals in an ecosystem, but it is not specifically focused on the circulation of elements.
- **Geological Chemical Cycle:** Also known as the rock cycle, this cycle primarily deals with the formation and transformation of rocks, not the circulation of elements in ecology.
- **Geochemical Cycle:** This refers to the pathways of chemical elements in the Earth, but it does not encompass the interaction between living and non-living components.
- **Biogeochemical Cycle:** This cycle specifically refers to the circulation of elements between living (bio) and non-living (geo) components in an ecosystem. It includes the movement of essential elements like carbon, nitrogen, and phosphorus through the environment.

4. **Identifying the Correct Answer:** Based on the definitions, the correct term that describes the circulation of elements in ecology is the **Biogeochemical Cycle**.

5. **Final Answer:** The answer to the question is **D) Biogeochemical cycle**.

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