Water moves through watersheds to rivers, lakes, and eventually oceans. Wetlands cannot filter pollution from freshwater systems.
Pollution can move into underground aquifers used for drinking water.
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Ocean pollution is less harmful because it is mixed with a lot of water.
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Ocean salinity is the same in all locations.

Aquaternary consumer species would be expected to have a smaller population than a secondary consumer species. select the best answer from the choices provided t f

Ascientist is investigating the effects of salinity on fish development. he places fertilized fish eggs in an aquarium that contains low salinity and observes their development. what factor would improve experimental design the most? place the fish eggs in the open ocean because that is the natural habitat include another aquarium that has normal salinity to compare to the low salinity aquarium include an aquarium that replaces salt with sugar to confirm that the effects are specific to salt grow algae with the fish eggs in order to provide adequate nutrients to the developing embryos

Why are some people more concerned about shark survival than about shark attacks?