How has resistance to antibiotics in E. coli changed since 1990? Why has this trend occurred?

coal is not sustainable because it will one day run out.

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 

idk

explanation:

im not intirely sure but i think the anwser is d relative humidity