Which of the following choices best explains why glaciers move? A. Glaciers are helped downhill by the force of gravity.
B. Glaciers are helped uphill by the force of gravity.
C. Glaciers only move when earthquakes lessen friction.
D. None of these choices are correct.

Each of the following reactions is allowed to come to equilibrium and then the volume is changed as indicated. predict the effect (shift right, shift left, or no effect) of the indicated volume change. drag the appropriate items to their respective bins.co(g) + h2o(g) < => co2(g) + h2(g) (volume is decreased) pcl3(g) + cl2(g) < => pcl5(g) (volume is increased) caco3(s)< => cao(s) + co2(g) (volume is increased)