What happens when humans burn fossil fuels? A. Carbon is released into the atmosphere.

B. Carbon is removed from the atmosphere.

C. Carbon is added to the the carbon cycle.

D. Carbon is destroyed.

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Control of the body is accomplished by which of the following body systems? nervous system and circulatory system endocrine and repertory system circulatory and respiratory systems nervous system and endocrine systems

What problem would a person most likely have if her kidney did not work correctly?

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