The spring equinox in the Northern Hemisphere occurs on ________

June 21
March 21
September 21
December 21


March 21

Environmental & Atmospheric Sciences

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An immigrant from Africa to the United States, learning to speak English, is going through the process of:

A. acculturation. B. immigration. C. ethnocentrism. D. migration.

Environmental & Atmospheric Sciences

Body waves

A) come in two principal types. B) refract at Earth's boundary layers. C) travel through Earth's interior following an earthquake. D) all of the above

Environmental & Atmospheric Sciences

Which of the half-reactions below would be complementary, balance the following half-reaction, and be chemically reasonable? Br2 ? 2 Br-

A. K ? K+ B. 2 K ? 2 K+ C. K ? K+2 D. K+ ? K E. 2 K+ ? 2 K

Environmental & Atmospheric Sciences

Which of the following explains why thunderstorms along cold fronts are more severe than thunderstorms along warm fronts?

A. Uplift is more rapid along cold fronts. B. Cold air has a greater capacity for moisture. C. Cold fronts move more slowly than warm fronts. D. There is greater turbulence ahead of cold fronts due to the higher air pressure.

Environmental & Atmospheric Sciences