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The layer that holds almost all of the water vapor in the atmosphere as well as 3/4 if its mass
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Examine the equation. 23490thβ23088ra+42he what kind of barrier would you need to block the radioactive particles from this reaction? a. a piece of paper b. a sheet of aluminum foil c. a two-inch block of lead d. a solid concrete block
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Match each scenario to the form of energy it represents
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What do the atoms of elements in the same group have in common? a. they have the same atomic numbers. b. they have the same average atomic masses. c. they have the same number of electron shells. d. they have the same number of electrons in their outermost shells.
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The layer that holds almost all of the water vapor in the atmosphere as well as 3/4 if its mass...
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