Question

which of the following causes coral bleaching?
habitat expansion
increasing sea temperatures
increased blodiversity
jellyfish toxin

Explanation:

Coral bleaching occurs when corals expel the symbiotic algae (zooxanthellae) living in their tissues, which is often triggered by stressors like increased sea temperatures. Habitat expansion, increased biodiversity, and jellyfish toxin are not primary causes of coral bleaching.

Answer:

B. Increasing sea temperatures (assuming the options are labeled A: Habitat expansion, B: Increasing sea temperatures, C: Increased biodiversity, D: Jellyfish toxin)