Which of the following statements is incorrect ?

Options

A. Average temperature decrease progressively from plains to the mountain tops.
B. Average temperature decrease progressively from the equator towards the poles
C. Temperature afects the kinetics of enzymes and through it the basal metabolism of organisms
D. None of these

Answer

To solve the question of identifying the incorrect statement among the provided options, we will follow these steps:

### Step-by-Step Solution:

1. **Understand the Statements**: Read each statement carefully to comprehend what they are claiming about temperature and its effects on ecosystems.

2. **Evaluate Statement 1**: The first statement claims that "average temperature decreases progressively from plains to the mountaintops." This is true as higher altitudes generally have lower temperatures.

3. **Evaluate Statement 2**: The second statement states that "average temperature decreases progressively from the equator towards the poles." This is also true; temperatures are generally warmer at the equator and decrease as one moves towards the poles.

4. **Evaluate Statement 3**: The third statement mentions that "temperature affects the kinetics of enzymes and the basal metabolism of organisms." This is correct as temperature plays a crucial role in enzyme activity and metabolic processes in living organisms.

5. **Identify the Incorrect Statement**: Since all the statements evaluated above are correct, we conclude that there is no incorrect statement among the options provided. Therefore, if the question asks for an incorrect statement, we must select the option indicating that all statements are true.

6. **Final Answer**: The answer is that all the statements are correct, and thus, there is no incorrect statement among the options provided.