Question: The tides are periodic rises and falls of large bodies of water on Earth. Describe the cause of the tides on Earth. Use an drawing to help illustrate the cause of tides. Explain why there are two high days per day in one location.

The variability in marine salinity between habitats does not impact the fish living there. select the best answer from the choices provided t f

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.

What is the measured amount of a product obtained from a chemical reaction?