Question

How can the bleaching of coral reefs BEST be compared to canaries in a coal mine?

Like a canary, a coral reef is able to survive changes in the environment.
Like a canary in a cage, a coral reef doesn’t move.
Like a canary signaled the presence of carbon monoxide in mines, coral reef bleaching could be a sign of unhealthy ocean waters.
Like a canary, a coral reef is not affected by atmospheric gases.

Answer 1

[AI-generated answer — Bot GPT 3.5]

The BEST way to compare the bleaching of coral reefs to canaries in a coal mine is that both serve as early warning indicators of environmental health. Just as canaries were used in mines to detect dangerous levels of toxic gases, coral reef bleaching can indicate the presence of unhealthy conditions in ocean waters, such as warming temperatures or pollution. In both cases, paying attention to these warning signs can help prevent larger-scale environmental harm.