If the area shown in this figure is 240 kilometers wide, and the oldest crest is 4 million years old, what was the approximate rate of seafloor spreading across this ridge?
A. 60 kilometers per million years
B. 960 kilometers per million years
C. 2.4 kilometers per million years
D. 0.24 kilometers per million years
E. 240 kilometers per million years
Answer: A
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Iron atoms have a greater tendency to oxidize than do copper atoms. Is this good news or bad news for a home in which much of the plumbing consists of iron and copper pipes connected together? Explain.
A. This is not a problem since any electrons lost will be replaced by copper electrons. B. This is not a problem, since the strength of the copper will make up for the weakness of the iron. C. It is bad news. The iron atoms will lose electrons to the copper atoms, which will pass those electrons onto oxygen atoms that are in contact with the surface. D. This is bad news, since the iron atoms will be reduced by the copper atoms.
By what name is the large peninsula of Turkey, located wholly in Asia, known?
A) Anatolia B) Middle East C) Levant D) Persia E) Maghreb
The origins of GIS is generally traced to Dr. Snow in 1854, who overlaid three different maps to identify the source of the cholera outbreak in London
Indicate whether the statement is true or false.
The oceans absorb roughly 25% of the CO2pumped into the lower atmosphere by human activities. As the oceans heat up, this absorption ____.
A. increases dramatically B. increases somewhat C. stays relatively stable D. decreases E. stops