Question

Which 2 of the following are important nutrients that are at the bottom of

aquatic environments due to dead organisms that sunk and decomposed
there?*
Nitrogen
Phosphate
Helium
Mercury

Answer 1

nitrogen..Nitrogen and phosphorus are essential plant nutrients found in aquatic ecosystems, however, in excess amounts, they can cause significant water quality problems. Nitrogen and phosphorous in water are typically found in the forms of nitrate and phosphate, respectively.