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Gravity tends to pull Earth and the moon toward each other, but inertia, sometimes called _____, keeps them apart.  

Chlorofluorocarbons (CFCs) can be used as _____, which are artificial substances with known histories of production or release.

The _____ associated with a great storm will build the ocean surface into a broad dome as much as 1 meter (about 3 feet) higher than average sea level. 

The _____ is the uppermost layer of seawater lit by the sun. 

Active transport is the reverse of _____. 

The process of using light energy to produce molecules rich in stored energy is called _____. 

The genus and species names constitute an organism’s _____. 

Evolution by natural selection is the accumulation of beneficial inheritable structural or behavioral traits, known as _____. 

Divisions of the ocean bottom are labeled benthic and begin with the intertidal _____ zone, the band of coast alternately covered and uncovered by tidal action. 

The_____, the band between the highest high-tide and lowest low-tide marks on a rocky shore, is one of Earth’s most densely populated areas.