?Match the term with the correct description.
A. ?population projected to triple between by 2050
B. ?makes up about 25% of the U.S. population
C. ?country with the world's highest percentage of people age 65 and older
D. ?the world's fourth largest economy
E. ?world's most populous country
A. ?people 65 and older
B. ?baby-boom generation
C. ?Japan
D. ?India
E. ?China
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Which of the following describes how many small-scale processes are dealt with in general circulation models?
A. approximated and modulated B. parameterized and estimated C. approximated and parameterized D. ignored or modulated
To denote the luminosity of stars, as a reference, astronomers use the luminosity of
A. the cluster of stars at the center of the Milky Way galaxy. B. the Sun. C. the Northern Star. D. Proxima Centauri, our solar system's closest neighbor star.
A hydrocarbon is
A. any organic molecule. B. a molecule derived from hydrogen synthesis. C. a wet carbon atom D. a molecule composed of carbon and hydrogen only. E. none of the above
The formation of new organic material at the consumer level is termed ____
a. net productivity b. gross productivity c. primary productivity d. secondary productivity e. thermodynamics productivity