Question

which of the following is not a way humans have directly impacted coral reefs? a. overfishing b. tourism c. algae farming d. agriculture please select the best answer from the choices provided a b c d

Explanation:

• Overfishing can disrupt the ecological balance of coral reefs by removing key species that help maintain the reef's health.
• Tourism can lead to physical damage (e.g., trampling by tourists) and increased pollution (e.g., from boats) in coral reef areas.
• Agriculture can cause runoff of fertilizers and pesticides which can lead to eutrophication (excessive nutrient input) and harm coral reefs.
• Algae are a natural part of the coral reef ecosystem. While some algae - related issues (like algal blooms due to external factors) can affect reefs, algae farming itself is not a direct human - caused impact on coral reefs in the same way as the other options.

Answer:

C. algae farming