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What is involved in redox reactions
A. the transfer of electrons between reactants
B. the bonding of ions to form chemical compounds
C. the addition of water to break down food macromolecules
D. the breaking down of water into hydrogen and oxygen atoms

Which function is performed by earths atmosphere? a. ultraviolet rays are prevented from reaching the ozone layer. b. earths temperature is raised and moderated by trapping in heat c. charged particles from the sun are prevented from reaching earth. d. magnetic charges from space are prevented from reaching earths surface.

What are the 4 phases of matter in order of increasing engery content?

Which change in temperature is the smallest? a change of 1 thomson degree a change of 1 kelvin degree a change of 1 fahrenheit degree a change of 1 celsius degree