Why do you need to rinse all tank decorations and presoak the gravel before adding it to your tank? A. To keep the tank as clean as possible

B. It will kill the fish if you do not

C. The fish will not be able to see because of the dust

D. The dust will get stuck in the gills of the fish and they will not be able to breathe.

Along with the kidneys, the ureters, bladder, and urethra make up the urinary system. match each function or description to the appropriate structure.

Providing immunity by injecting the body with a weakened form a pathogen is known as

Melissa lives in a town called greendale. she discovers that when she lights a match and holds it near her kitchen faucet, the little flame grows into a larger fire. melissa is surprised because she thought the water would extinguish the flame rather than ignite it further. her mother tells her that the water might be contaminated with dissolved methane, a primary component in natural gas. melissa investigates the matter and finds that cases of methane contamination started shortly after a company began fracking for natural gas in the area. based on this information, which three statements are plausible consequences of fracking in greendale?