Therapsids have features characteristic of ____, but they are truly _____
a. mammals; amphibians
b. mammals; reptiles
c. reptiles; amphibians
d. amphibians; reptiles
e. reptiles; mammals
b
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Between 1972 and 1992, GDP increased by approximately 2 trillion dollars. In comparison, GPI:
a. Stayed exactly the same. b. Increased only slightly. c. Also increased by 2 trillion dollars. d. Decreased by 1 trillion dollars.
Globalization in the form of the new production of irrigated cash crops brought this change to the rural Sudanese village studied by geographer Cindi Katz
A) Children were required to attend school. B) Subsistence crops were no longer grown. C) The traditional roles and activities of boys and girls changed. D) Wal-Mart
Which of the following is a common basic substance?
A. Ammonia B. Battery acid C. Black Coffee D. Orange juice
Sheet lightning
A) does not require a separation of charge. B) is visible as sharp streaks of lightning arcing through the sky. C) occurs when the electrical resistance in the air overcomes the voltage gradient within a cloud or between clouds. D) accounts for the majority of all lightning events.