If a gas cools under constant pressure, the molecules within it have ________ kinetic energy (motions) and can therefore ________.
A. more; be packed into a larger volume
B. less; be packed into a smaller volume
C. more; be packed into a smaller volume
D. less; be packed into a larger volume
Answer: B
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In terms of grams of carbon per square meter per day, the open-ocean environment is about as productive as ________.
A. tropical rain forests B. intensively farmed fields C. prairie land D. deserts E. alpine forests
A strike-slip fault is:
a. when the movement is entirely horizontal. b. when the hangingwall moves up over the footwall. c. when the footwall moves up relative to the hangingwall.
Comets orbit about the
A) Sun. B) Moon. C) Earth. D) all of these E) none of these
Conical marine organisms that lived during the Cambrian and were the earliest builders of reef-like structures are
known as ____. a. protists b. cyanobacteria c. brachiopods d. sponges (porifera) e. archaeocyathids