Which of the following is the conjugate acid of H2PO4-?
A) H3PO4
B) HPO42-
C) PO43-
D) H3O+
A
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In the altitudinal zonation of the equatorial mountain areas of Latin America, the zone between 3,000 to 6,500 feet (1,000 to 2,000 m) with warm temperate conditions and deciduous forest is the
A. tierra fria B. tierra caliente C. tierra helada D. tierra templada
The place where three plate boundaries intersect is called: __.
a. a triple junction b. a conservative plate boundary c. a joint boundary d. a node
Sedimentary rocks with marine fossils are exposed at the top of Mt. Everest. Which scientists would make most use of this observation in their study?
A) Geologists, because their elevation is related to physical geology and fossils are related to Earth history
B) Oceanographers, because the fossils can tell us about periods when the earth was covered with water to the height of Mt. Everest
C) Astronomers, because they can study how life came from outer space to Earth
D) Meteorologists, because they could use the fossils as a guide to ancient climates
Monsoonal winds are
A) the Asian equivalent of Santa Ana winds. B) regional wind systems that seasonally vary. C) limited to the Indian subcontinent. D) katabatic in nature. E) a form of mountain-valley wind.