The upper surface of the saturated zone is called the ________.
A. hard pan
B. saturated lid
C. recharge zone
D. water table
E. head level
Answer: D
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The Laramide orogeny was part of the ___________ orogeny. Fill in the blank(s) with the appropriate word(s)
What did William Smith correlate while researching coal mines in Britain?
A) fossils in different layers in the same mine B) fossils in the same layers in different mines C) composition of coal seams in different mines D) types of rock layers in different mines
Which would produce a more highly valued element, adding or removing a proton from the element gold?
What will be an ideal response?
The American crow is a large passerine bird of the family Corvidae and is a common bird found throughout much of North America. It is most likely to be a _____ species.
A. nonnative B. keystone C. invasive D. generalist E. indicator