Which of the following components makes up the largest percentage of most soils?
A) Mineral portion
B) Pores filled with water
C) Organic portion
D) Pores filled with air
Answer: A
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True or False: Every part of the Vulcanist doctrine for the formation of rocks was true
Indicate whether this statement is true or false.
The principal approach to assigning surface-water rights in the eastern United States is based on the
A. owner takes all principle. B. first use, first priority principle. C. Riparian Doctrine. D. Doctrine of Prior Appropriation.
The hottest individual temperature readings on Earth are observed in the ____
a. subtropical deserts of the Northern Hemisphere b. subtropical deserts of the Southern Hemisphere c. tropics d. coastal regions of South America e. interior of Siberia
Global warming threatens coral reefs because
A. warm temperatures prevent corals from hunting for food. B. warm temperatures cause the shells of corals to dissolve. C. the bacteria that cause coral bleaching thrive when temperatures are warm. D. corals eject the dinoflagellates that live within their tissues when seawater temperatures are too high.