Progesterone, which is present in humans as a single stereoisomer, has six stereocenters. Human progesterone is one of how many possible stereoisomers for this structure?

A) 6
B) 32
C) 64
D) 128


C

Environmental & Atmospheric Sciences

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Estimate the approximate length of daylight for the following locations:

a) Dawson, Yukon Territory, Canada (64° N), on December 21 b) Adelaide, South Australia (35° S), on June 21 c) Bangkok, Thailand (14° N), on March 20

Environmental & Atmospheric Sciences

The United States produces ________% of the global supply of coal but currently consumes ________% of the global demand.


A) 26.6%, 10.3%
B) 26.6%, 11.9%
C) 10.3%, 26.6%
D) 11.9%, 26.6%
E) 11.9%, 10.3%

Environmental & Atmospheric Sciences

Calm, fair weather is most likely to result from a(n) ________

A) tropical cyclone B) midlatitude cyclone C) midlatitude anticyclone D) tornado E) chinook

Environmental & Atmospheric Sciences

What the the primary factors to contribute to seasonality on Earth

What will be an ideal response?

Environmental & Atmospheric Sciences