The law of limiting factors was given by ___ in the year___

Options

A. Blackman, 1905
B. Blackman, 1804
C. Engelemann, 1909
D. Warburg, 1920

Explanation

**Step-by-Step Solution:**

1. **Identify the Law of Limiting Factors**: The law of limiting factors is a principle that explains how the rate of a process (like photosynthesis) is limited by the factor that is in the least supply.

2. **Determine the Contributor**: The law of limiting factors was proposed by a scientist named Blackman.

3. **Establish the Year**: Blackman introduced this law in the year 1905.

4. **Summarize the Information**: Therefore, the complete answer to the question is that the law of limiting factors was given by Blackman in the year 1905.

**Final Answer**: The law of limiting factors was given by Blackman in the year 1905.

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