How can you tell if a lake or pond has been through the eutrophication process? a
if there are large amounts of plants and algae

b
if there are NO plants or algae

c
if there are large amounts of organisms (such as fish) living in the lake and/or pond

i think that is new experiments yield untrustworthy data and should be carefully considered, because you don't know what will happen with the experiments.

step 1: nitrogen fixation- conversion of atmospheric no₂ into forms useful to plants by lightning, bacteria, and cyanobacteria.

step 2: nitrification-process of converting ammonia to nitrite or nitrate.

step 3: assimilation-plant roots absorb new form of nitrogen.

step 4: ammonification-conversion of organic nitrogen to ammonia by bacteria involved in decomposition.

step 5: denitrification-bacteria turns the decomposed matter back into n₂o, which is released into atmosphere; repeat cycle.

cell/ tissue/ organ/ organ system/ body

answer/// to address the needs of adults with mental illness and increase their ability to function;