Select the incorrect statement

Options

A. Organisms living in oceans, lakes and rivers do not face any water related problems
B. Productivity and distribution of plants is dependent on water
C. The levels of thermal tolerance of different species determine to a large extent their geographical distribution
D. Foraging , reproductive and migratory activities of some animals are dependent on seasonal variation in light.

Answer

To solve the question of selecting the incorrect statement, we will analyze each statement provided.

### Step-by-Step Solution:

1. **Read the Statements Carefully**: The first step is to carefully read each statement provided in the question to understand what they imply.

2. **Analyze the First Statement**: The first statement claims that organisms living in oceans, lakes, and rivers do not face any water-related problems.
- **Evaluation**: This statement is incorrect. Aquatic organisms are highly dependent on water for various metabolic processes, including respiration, reproduction, and waste removal. They can face significant problems due to water pollution, such as decreased dissolved oxygen levels, which can lead to the death of these organisms.

3. **Consider the Implications of Water Pollution**:
- **Example**: If there is sewage or industrial waste in the water, it increases the biochemical oxygen demand (BOD), leading to lower dissolved oxygen levels. This can be fatal for aquatic life.
- **Oil Spills**: Oil spills can also suffocate aquatic organisms by blocking oxygen from reaching them.

4. **Evaluate the Other Statements**: Although the question only asks for the incorrect statement, it is good practice to briefly consider the other statements to ensure a comprehensive understanding. However, since we are focused on identifying the incorrect one, we will primarily concentrate on the first statement.

5. **Conclusion**: Based on the analysis, the first statement is incorrect because aquatic organisms do face water-related problems due to pollution and other factors.

### Final Answer:
The incorrect statement is: "Organisms living in oceans, lakes, and rivers do not face any water-related problems."

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