Humus is ________
A) an artificial fertilizer applied to monocultures
B) one of the primary causes of desertification if it is present in excess
C) caused by agricultural runoff into waterways or into the water table
D) the layer sometimes found in a soil horizon that is created by eluviation; it causes serious problems in agricultural fields
E) the organic soil component that holds soil moisture and enhances soil fertility
Answer: E
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The Pleistocene began with major glacial advances as early as:
a. 10 thousand years ago. b. 100 million years ago. c. 26 million years ago. d. 2.6 million years ago.
____________________ is the ability of water to pull itself upward through small openings against gravity
Fill in the blank(s) with correct word
What process dominates weather in Florida?
A. frontal interactions B. orographic lifting C. density lifting
Which of the following is not correctly matched?
A) ice sheet - isostatic depression of the crust B) ice cap - completely buries the underlying landscape, but covers less than 50,000 km to power of (exponent) C) ice field - more than 10,000 feet thick D) ice cap - dome shape E) ice field - nunataks visible