Which best describes the motion of iron atoms in solid iron? O A. The iron atoms move freely and take up space in the solid.
B. The iron atoms move slowly from one place to another.
ОО ОО
C. The iron atoms are motionless.
O D. The iron atoms vibrate in place.

Which of the following natural processes is most likely to support the formation of an underwater sinkhole? a pollution buildup from deposited minerals b limestone cave collapsing due to changes in sea level c erosion of large amounts of sand moved by ocean waves d oxidation of rock formed by chemical weathering