Need this ASAP!! Which of the following energy resources are replaceable through biogeochemical cycles and also provide clean energy?
Geothermal energy
Biomass energy
Nuclear power
Hydropower

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.

How many moles of co2 are produced during the complete combustion of 3.6 moles of c2h6

Select the statement that describe chemical properties a. antacid tablets neutralize stomach acid b. helium is the lightest monatomic element c. water freezes at 0 celsius d. mercury is liquid at room temperature