Noctilucent clouds are associated with the ________ whereas the auroras are associated with the ________
A) stratosphere; ozonosphere
B) thermosphere; ionosphere
C) troposphere; homosphere
D) mesosphere; ionosphere
D
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What is the recurrence interval that is considered acceptable by insurers for development on flood plains?
A) 10 years B) 50 years C) 100 years D) 500 years
The balanced equation for burning octane is: 2 C8H18(g) + 25 O2(g) ? 18 H2O(g) + 16 CO2(g) What weight of H2O is produced by completely burning 19.8 g of octane?
A) 28.1 g B) 34.7 C) 69.5 D) 139 g
If uranium were to split into three segments of equal size instead of two, would more energy or less energy be released?
A. Less energy would be released because of less mass per nucleon. B. More energy would be released because of more mass per nucleon. C. More energy would be released because of less mass per nucleon. D. Less energy would be released because of more mass per nucleon.
The Amazon has the greatest discharge in the world. Which river has the second greatest discharge?
A) The Missouri B) The Congo C) The Ob D) The Nile E) The Hudson