Soil humus theory of plant nourishment was given by

Options

A. Aristole
B. Liebig
C. Von Helmont
D. Ingen-Housz.

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the origin of the soil humus theory of plant nourishment. We need to identify who proposed this theory from the given options.

2. **Reviewing the Options**: The options provided are:
- A) Aristotle
- B) Ligwig
- C) Bornhelmont
- D) Inzenhorst

3. **Recalling the Humus Theory**: The soil humus theory suggests that plants derive their nourishment primarily from humus, which consists of decomposed organic matter. This theory emphasizes that plants utilize the nutrients found in humus, including carbon, hydrogen, oxygen, and nitrogen.

4. **Identifying the Proposer**: The humus theory was notably proposed by a scientist named Ligwig. This theory indicates that plants can rebuild complex tissues from the simple compounds found in humus.

5. **Selecting the Correct Answer**: Given the information, the correct answer to the question is option B) Ligwig.

**Final Answer**: The soil humus theory of plant nourishment was given by Ligwig.

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