What happens when rocks oxidize near Earth's surface?
A. Oxygen combines with water to create weak acids that weather rocks.
B. Minerals in the rock release oxygen that can break down adjacent rocks.
C. Minerals, especially those with iron, combine with oxygen.
D. Oxygen combines with silica to make quartz.
Answer: C
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The vast northern coniferous forests of Siberia are known as
A) steppes B) lichens C) permafrost D) tundra E) taiga
Decode the following station models (be sure to indicate the correct units of measurement for each value).
Why is ranching more common in the Rocky Mountain region than agriculture?
A) Cattle and sheep can graze in areas with marginal soils and little water. B) Cattle and sheep were more profitable than agriculture. C) The long period of snowfall would affect animals less than plants. D) Ranching is not more common in the Rocky Mountains than agriculture.
Science is based on the assumption that nature behaves in a consistent and predictable manner
Indicate whether the statement is true or false