Which of the following is true of enzymes?
A) They shift the position of a chemical equilibrium.
B) They speed up the rate of a chemical reaction.
C) both a and b
D) neither a nor b
B
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The asthenosphere is the outer layer of Earth, which is rigid and is broken into individual plates
a. True b. False
Observations are used to supply values corresponding to the starting or current state of the atmosphere for all of the variables carried in the model
A) analysis B) prediction C) post-processing D) none of these
The arrangement of features in space is a(n):
a. absolute location b. spatial distribution c. spatial interaction d. spatial pattern
What is the definition of cryovolcanism?
A) Pyroclastic volcanism that ignites methane-rich atmospheres B) Cessation of volcanism because of increasing atmospheric pressures C) Increase in rate of tectonic motion due to lubrication of ice D) Eruption of magmas derived from partial melting of ice