The difference between an area's highest point and lowest points is referred to as... A) relief
B) Topography
C) Elevation
D) Altitude

Which of the layers of the earth has the following three characteristics? i. it is made of molten rock. ii. it has currents that are constantly moving. iii. earth’s plates float on top of its currents.

Agricultural practices in the united states nearly led to the extinction of the peregrine falcon during the 1950s and 60s.

Liquefaction is a. a quicksand-like condition arising in some wet soils during earthquakes. b. flooding caused by tsunamis. c. flooding of coastal areas due to tectonic subsidence. d. flooding caused by dam failure resulting from an earthquake.