In general, extrusive igneous rocks have larger crystals than intrusive igneous rocks
a. True
b. False
Indicate whether the statement is true or false
False
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Which of the following actions would trigger an ecological tipping point?
A. Repeatedly clearing a tropical rainforest in Indonesia B. Repeatedly repaving a mall parking lot C. Repeatedly clearcutting a pine plantation in southern Georgia D. Repeatedly cutting the grass on a golf course
A country that has undergone a full demographic transition has ________
A) a higher birth rate and a lower death rate B) a higher birth rate and a lower death rate, and is about to undergo modernization C) a lower birth rate, a lower death rate, and has undergone modernization D) a lower birth rate and a higher death rate
Which of the following decades had the lowest average global temperature?
A) 1890-1900 B) 1930-1940 C) 1940-1950 D) 1970-1980 E) 1980-1990
An inversion represents an extremely stable atmosphere because air that rises into the inversion will eventually become ____ and ____ dense than the surrounding air
a. warmer; less b. warmer; more c. colder; less d. colder; more e. warmer; similarly