Which source contribute towards eutrophication in dead zone?

i'd say that the moon rock is about 2.2 billion years old.

satellites are frequently used to make observations of the orbit on earth

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