Some claim that one gas is very near the maximum that can stably occur. That gas is _______.
Fill in the blank(s) with the appropriate word(s).
Answer: oxygen
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Which geologic eon and era are we currently living in?
A. Proterozoic eon, Cenozoic era B. Proterozoic eon, Mesozoic era C. Phanerozoic eon, Paleozoic era D. Phanerozoic eon, Cenozoic era
People who live entirely within an urban environment ________
A) may become disconnected from nature and from the true costs of their needs and activities B) pay less for food and gasoline than rural areas C) have insufficient choices for activities and lifestyles D) are never provided enough quality housing, even for those who can afford it E) have too many luxury goods at too expensive a price
In the Southern Hemisphere, the deflection from the Coriolis force is towards the right
Indicate whether the statement is true or false
________ are mounds and ridges of sand that are deposited by the wind
A) Ventifacts B) Desert pavements C) Blowouts D) Dunes