The Precambrian comprises what percent of geologic time?
A)99 percent
B)88 percent
C)77 percent
D)66 percent
E)55 percent
B
Environmental & Atmospheric Sciences
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Define "link impedance."
What will be an ideal response?
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Earth differentiated during the ____
A)Hadean B)Archean C)Paleoproterozoic D)Mesoproterozoic E)Neoproterozoic
Environmental & Atmospheric Sciences
Explain the geographical implications of christianitas
What will be an ideal response?
Environmental & Atmospheric Sciences
Ellis Island
A) was the subject of a territorial dispute between New York and New Jersey. B) was originally claimed by France but given to the United States along with the Statue of Liberty. C) is still in use today as an immigration gateway to the United States. D) is the actual location of the Statue of Liberty. E) is not truly an island because it is joined to the mainland by a narrow strip of land.
Environmental & Atmospheric Sciences