Question

Arrange the following steps in the process of coral bleaching.

1. Corals expel their symbiotic algae.

2. Increased water temperature.

3. Corals loose their colour and become stressed.

4. Reduced photosynthetic activity.

• A. 2, 4, 1,3
• B. 1, 3, 2, 4
• C. 2, 1, 4, 3
• D. 4, 2, 3, 1

Answer 1

Answer:

C. 2, 1, 4, 3

• Coral bleaching is a phenomenon where corals turn white due to the loss of their symbiotic algae (zooxanthellae) and/or the degradation of the algae's photosynthetic pigments.

Steps in the process of coral bleaching.

• Increased water temperature.

• Corals expel their symbiotic algae.

• Reduced photosynthetic activity.

• Corals loose their colour and become stressed.