Increasing depths in the ocean causes a what in sunligh. Increasing depths in the ocean causes a what in pressure. Producer in the upper three zones of the ocean use what while producer in the lower ocean zones use what to generate nutrients to support the ecosystem

1 answer

With increase in depth, sunlight decreases and pressure increases. Not sure what you are seeking for the last part.

Since this is not my area of expertise, I searched Google under the key words "ocean zones producers" to get these possible sources:

http://www.google.com/search?client=safari&rls=en&q=ocean+zones+producer&ie=UTF-8&oe=UTF-8#hl=en&sugexp=ldymls&xhr=t&q=ocean+zones+producers&cp=21&pf=p&sclient=psy&client=safari&rls=en&source=hp&aq=f&aqi=&aql=&oq=ocean+zones+producers&pbx=1&fp=509d93197c8251b0

In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search. Also see http://hanlib.sou.edu/searchtools/.