If you can't pay attention because a song lyric is stuck in your head, you are experiencing _______

A) physiological noise
B) semantic noise
C) internal noise
D) message filtering


C

History

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By the 1840s, the large number of free blacks in Charleston resulted in:

A) most free blacks being reinslaved. B) free blacks being made to wear badges. C) free blacks being given legal equality with whites. D) South Carolina passing a law expelling free blacks.

History

Homo habilis got their meat primarily by

a. scavenging from kills made by animals. b. herding animals off cliffs or into swamps. c. hunting with bows and arrows. d. hunting with spears and other thrown weapons. e. setting traps.

History

The move from water transport to railroads was the result of

a. more powerful steam engines. b. geography that was conducive to laying down track. c. insufficient canals and riverways. d. increase in urban centers. e. cheaper iron.

History

In the six months following the peace accord, North Vietnam and the Provisional Revolutionary Government (PRG)

A. made a good faith effort to secure a negotiated solution to the war. B. proposed that the World Court mediate the ongoing dispute between Hanoi and Saigon. C. launched a massive, tank-led offensive aimed at capturing Saigon. D. called on France to use its good offices to achieve a mutually satisfactory diplomatic solution to the war. E. infiltrated troops into South Vietnam, and constructed a greatly improved logistical infrastructure.

History