Consult the image that depicts Bowen's reaction series. What can be said of the temperature at which a granite crystallizes?
A) Granite crystallizes at temperatures of about 750° C.
B) Granite crystallizes at temperatures of about 900° C.
C) Granite crystallizes at temperatures of about 1200° C.
D) Nothing can be deduced from this chart about the crystallization temperature of any igneous rock.
Answer: A
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Which of the following statements about water vapour is correct?
A. Vapour pressure decreases with increasing altitude. B. A decrease in the number of water vapour molecules will increase the vapour pressure. C. If air pressure falls, vapour pressure will increase. D. The vapour pressure is typically higher than the partial pressure exerted by oxygen.
The residence time of carbon dioxide (CO2 ) is
A) 50 to 200 years. B) approximately 90 days. C) 45 days. D) 50,000 years. E) 12 years.
Who allowed his ship to be trapped in the Arctic ice for nearly four years to prove that no Arctic continent existed?
a. Nansen b. Mahan c. Murray d. Anderson e. Thomson
Which type of seismic waves are propagated through the earth as alternate compressions and expansions of the rock and soil?
a. P waves b. S waves c. surface waves d. both a and b