The Big Bang occurred roughly ________ years ago.
A. 10 billion
B. 250 million
C. 13 billion
D. 4.6 billion
E. 750 million
Answer: C
Environmental & Atmospheric Sciences
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The United States exports some of the oil that it produces.
Answer the following statement true (T) or false (F)
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In what environments does low pressure- high tempereature metamorphism occur?
a) near magma but a shallow levels b) near magma but at deep levels c) under normal conditions of burial and heating d) in a subduction zone or accretionary prism
Environmental & Atmospheric Sciences
Continental tropical (cT) air masses are associated with summer drought conditions in the southern Great Plains
Indicate whether the statement is true or false
Environmental & Atmospheric Sciences
How old is Earth?
a. 4.6 billion years old b. 4.6 million years old c. 460 million years old d. 4600 years old e. 46 billion years old
Environmental & Atmospheric Sciences