At toxic levels of concentration of mineral element, the dry weight of tissue reduces by about

Options

A. Half
B. 0.05
C. 0.1
D. 0.01

Answer

To solve the question regarding the reduction of dry weight of tissue at toxic levels of mineral elements, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Concept of Toxic Levels**:
- Toxic levels refer to concentrations of mineral elements that are excessively high, leading to adverse effects on plant health.

2. **Identify the Impact of Toxic Levels**:
- At toxic levels, plants exhibit various symptoms, such as reduced growth and changes in tissue composition. This often results in a decrease in the dry weight of the plant tissue.

3. **Analyze the Options Given**:
- The options provided are:
- a) 0.5
- b) 0.05
- c) 0.1
- d) 0.01

4. **Convert Percentages to Decimal**:
- To understand the reduction in dry weight, we need to convert the percentage reduction into decimal form. For example, if we consider a 10% reduction:
- 10% = 10/100 = 0.1

5. **Select the Correct Option**:
- Based on the understanding that at toxic levels, the dry weight of tissue reduces by about 10%, we can conclude that the correct answer is:
- c) 0.1

### Final Answer:
The dry weight of tissue reduces by about **0.1** at toxic levels of concentration of mineral elements.

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