What hypothesis did miller-urey test in their experiment?
a. organic molecules can form in a reducing atmosphere.
b. earth is a primordial soup.
c. organic molecules cannot survive in a reducing atmosphere.
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indicate valleys, hills, steepness and gentleness of slopes.

explanation:

contour lines on a map indicate elevation, or depth. numeric notations on contour lines refer to the level of elevation, or height about sea level.

the dissolution of polymer can be thermodynamically described in 2 steps.