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  1. C

    earth science multiple choice question! please help?

    A boulder falls freely from point A to point B. Which statement best explains the relationship b/w the height of the boulder and its potential and kinetic energy as it falls? a. its potential energy decreases and its kinetic energy increases b. its potential energy increases and its kinetic...
  2. C

    Earth science question please?

    How can you tell the difference between an intrusion and extrusion? when the rock above it is metamorphosed, does that mean it is an extrusion or an intrusion?
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