Glaciers currently cover about ______ of the land surface

The water table is the surface separating the zone of aeration?

In the following statement, fill in the two blanks with the most appropriate option: increase(s), decrease(s), does not change.  One conclusion you made from this article, indicates that reduced daily loading [direction1] viscoelastic properties of tendons, which could [direction2] risk of injury.

Oceanic trenches are long, steep-sided depressions on the ____ _______ near _________ boundaries. 

Soils in humid regions are lighter in color and more fertile than those of semiarid regions. 

______ _________ is the downslope movement of material under the direct influence of gravity?

Coal is a type of biochemical sedimentary rock composed of altered remains of land plants. 

The Hawaiian volcano called ___________ has been erupting continuously since 1983. 

Volcanic rocks are also classified as extrusive rocks. 

The ________ _____ ________ subdivides geological time into a hierarchy of increasingly shorter time intervals, each of which has a specific name and duration.