On a daily basis, the sun is most intense at
A) 6:00 AM.
B) 12 Noon.
C) 3:00 PM.
D) 6:00 PM.
Answer: B
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Which of the following is cycled in minor amounts compared to the other substances on the list?
A) Water B) Phosphorous C) Nitrogen D) Oxygen E) Carbon dioxide
What influences soil’s ability to hold nutrients but also allows plants to absorb those nutrients?
A. soil fertility B. cation exchange capacity C. soil nutrient competence D. colloidal exchange capacity E. soil chemistry
Lake Baikal (400 miles long, 50 miles wide) holds more fresh water than all the US Great Lakes together, and about twenty percent of all the fresh water on earth.
a. true b. false
This cross section shows the location of 5 wells and the water table. Which well is most likely to be an artesian well?
A) Well A
B) Well B
C) Well C
D) Well D
E) Well E