How many photons are contained in a flash of blue light (422 nm) that contains energy? show your work. answers wit attention to significant figures and units

How does a noncompetitive inhibitor reduce an enzyme’s activity?

The biosphere of the earth is made up of what compound? organic or inorganic?

15. which of the following is not human-caused groundwater pollution? a. water in an aquifer dissolves elements such as arsenic and mercury from surrounding rock. b. water in an aquifer is contaminated by leachate that seeps into the ground from a landfill. c. water in an aquifer becomes polluted with chemicals used in hydraulic fracturing, or fracking. d. water in an aquifer absorbs harmful bacteria from the drainage field of a septic tank.