Question

The table below shows the maximum depth up to which some shallow water coral species can establish their colonies.


Picture will be Attached


Which coral species is most likely to die out when the surface ocean temperature rises?
W
X
Y
Z

Answer 1

Am I right with D?

Answer 2

Well, the surface ocean temperature is what's rising. As is, the coral in deeper areas of the ocean are far less likely to be impacted - also, temperature falls rapidly with increased ocean depths (not to mention pressure).

So anything that's closer to the top would probably die from overheating etc. first. You are correct, it's coral Z (or answer D).

Answer 3

The other choices would be wrong because they're further down from the surface. So while some of those might also die, they would be less at-risk than the coral that's closest to the surface.

Hope that helped!
Cheers,
Kitt

Answer 4

Okay thanks