Introduced sewage in water systems
a. decreases levels of phosphorus and nitrogen
b. increases oxygen levels
c. increases concentrations of solids
d. leads to decreases in the temperature

the answer is C. increases concentrations of solids on E2020

why do you want to cheat? i dont take it, so i dont know.

explanation:

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ecological efficiency: % of usable energy transferred as

biomass from one trophic level to the next typical is 10% efficient (90% of

energy is lost),is diagramed as the pyramid of energy flow. then osprey eagle

are tertiary consumer and the shrimp are primary consumer, so to balance

mass of shrimp (1/0.1) / 0.1 = 100 kg