The greatest threats to coral reefs is the rising temperature of the oceans as a result of climate change and the acidification of the oceans due to increased levels of carbon dioxide in the atmosphere which dissolves in the ocean and forms carbonic acid.Aug 3, 2015
Sound is a mechanical wave.
An example of an electromagnetic wave is visible light.
Answer:
pls ask one question at a time
Explanation:
<3 follow
I am convinced that the answer is D. Conductive Zone
