Avalanches
choose one:
a. can be triggered by explosions, people, or even just new snow.
b. always contain snow and/or ice.
c. never happen twice in the same place; therefore, the pathway an avalanche creates is a safe place to build.
d. are slow mass-movement events.

Apackage of supplies is dropped from a plane, and one second later a second package is dropped. neglecting air resistance, the relative velocity of the 1st package viewed from the second will 56) a) increase. b) be constant. c) be zero. d) depend upon their weight. e) decrease

Which changes of state do the labels represent? a: b: c:

Which radioisotope is used in dating geological formations?