What does a profile of a river from its headwaters to its mouth typically show?
A) An increase in gradient downstream
B) A straight-line profile reflecting a constant decrease in gradient
C) An abrupt increase followed by a gradual decrease
D) A curved shape that flattens out downstream
E) None of these are correct.
D) A curved shape that flattens out downstream
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Answer the following statement(s) true (T) or false (F)
1. The "Asian Way" is built on a hierarchy of relationships between people. 2. More profitable crops like soybeans and cotton are displacing wheat and rice in Chinese agriculture. 3. Floods along China's rivers are aggravated by deforestation. 4. China's "Great Green Wall" was a program of reforestation to reduce dust storms. 5. East Asia began to enter global trading networks in the 1800s.
Compared to relatively developed countries, developing countries have a higher percentage of workers in which sector of the economy?
A) primary B) secondary C) tertiary D) quaternary
Organisms affect the soil in which of the following ways?
A. by burrowing B. through decomposition C. by releasing nutrients D. All of these are correct.
An El Nino is fully in place when:
A. as dispersing water spreads away from the equator on the western coast of South America. B. as dispersing water spreads away from the equator on the eastern coast of South America. C. the leading edge of the Kelvin wave reaches the eastern coast of South America. D. the leading edge of the Kelvin wave reaches the western coast of South America.