Which of the following is the starting material derived from natural gas that is used for the production of ethylene?
A) acetylene
B) benzene
C) ethane
D) methane
C
Environmental & Atmospheric Sciences
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Give an example of a polygon feature class that can benefit from the topology (polygon) rule of "Must be covered by feature class of"?
What will be an ideal response?
Environmental & Atmospheric Sciences
All dunes originate in desert conditions. Indicate whether the statement is true or false
Environmental & Atmospheric Sciences
You are flying in an airplane at 36,000 feet above sea level. You see lightning outside your plane window. The cloud that is close by is:
A) cumulus. B) cirrus. C) altocumulus. D) stratus. E) cumulonimbus.
Environmental & Atmospheric Sciences
When the wavelength of an upper-level wave is on the order of many thousands of kilometers, the wave is called a(n) ____________________
Fill in the blank with correct word.
Environmental & Atmospheric Sciences