Much of Earth's water supply likely originated from
A) gases expelled from the Sun; i.e., solar wind.
B) respiration of early organisms.
C) asteroids.
D) photosynthesis.
E) transpiration
C
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Which set of rock properties are found in the highest quality aquifers?
A. low porosity, high permeability B. high porosity, low permeability C. high porosity, high permeability D. low porosity, low permeability
Global temperature trends are typically taken as the average over the entire planet.
Answer the following statement true (T) or false (F)
Recycling aluminum is particularly beneficial because it
A) saves energy. B) creates jobs in the country that recycles. C) decreases the need to import virgin aluminum ore. D) saves energy, creates jobs, and decreases imports of virgin aluminum ore.
In an anticyclone, the winds ____ at the surface and ____ in the upper atmosphere
a. converge; converge b. converge; diverge c. diverge; converge d. diverge; diverge