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Which part of an atom has most of its mass? a. electrons b. neutrons c. nucleus d. protons
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If two parallel light rays hit a mirror, they will not be parallel to each other after they reflect.
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Ais a machine that makes work easier when a single force is applied. a simple machine b compound machine c endangered machine d complex machine
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In the united states, tornadoes generally occur because of the freezing of ocean water underwater earthquakes meeting of cool and warm air masses shifting of warm and cool ocean currents
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Which part of an atom has most of its mass? a. electrons b. neutrons c. nucleus d. protons...
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