What abiotic factor would most likely signal a population of birds that it is time to migrate from north to south? decrease in sunlight
O change in precipitation
O increase in food source
o change in wind direction

Ineed ! when you answer this question, 98 points will be added to your account and the person that answers this question first will get the brainliest answer. so, here's the question the owners of a large tropical resort are considering a plan to destroy a large coral reef just offshore. they reason that, if the reef is gone, cruise ships will be able to dock closer to their resort and they will gain business. write a letter to the resort’s owners explaining how they might benefit more by preserving the reef instead.

1. the is the thinnest part of the earth. 2. the is the thickest part of the earth. 3. what metals are mentioned in the text?

Ecologist have observed a sharp increase of sulfur dioxide in the air . what might be a possible consequence of excessive sulfur dioxide in the air ? a. acid rain b. ozone layer depletion c. ozone layer hole d. increase in sea levels