________ are relatively narrow, elongated bands of thunderstorms that develop in the warm sector of a middle-latitude cyclone, usually in advance of a cold front
A) Squall lines B) Roll clouds C) Supercells D) Mesocyclones
A
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________ is a metal with a wide range of uses; it has received considerable attention in recent years because of its growing importance in batteries used in cell phones, laptop computers, and hybrid and electric-powered vehicles
A) Lithium B) Electrolyte C) Copper D) Platinum E) Rarearthium
GDP fails to measure barter, subsistence production, and household domestic labor
Indicate whether the statement is true or false
Uniformitarianism is the assumption that ____
a. principles of one branch of science apply to other branches of science b. catastrophic events don’t impact Earth processes c. younger sedimentary rocks are at the top of rock sequences d. current rates of atmospheric warming are unsustainable e. present-day geological processes also occurred in the past
It is estimated that about ________ undocumented immigrants entered the United States in 2009, most along the nearly 2,000 mile-long U.S.-Mexican border guarded by about 17,000 federal agents
A) 1 million B) 600,000 C) 300,000 D) 220,000 E) 150,000