What two eras ended with mass extinctions?

What two eras ended with mass extinctions? Both events were so significant they each marked the end of an era—the Mesozoic Era for the end-Cretaceous extinction and the Paleozoic Era for the end-Permian extinction. Which eras ended with a mass extinction apex? The Paleozoic Era ended with the largest extinction event in the history of […]

What is the term for identifying all the potential buyers in each market and estimating their potential purchases?

What is the term for identifying all the potential buyers in each market and estimating their potential purchases? Market-Buildup Method – a method that calls for identifying all the potential buyers in each market and estimating their potential purchases.  It produces accurate results if we have a list of all potential buyers and a […]

Which theory of development distinguishes between world economy and world empire?

Which theory of development distinguishes between world economy and world empire? World-systems analysis argues that there have been thus far only two varieties of world-systems: world-economies and world empires. A world-empire (examples, the Roman Empire, Han China) are large bureaucratic structures with a single political center and an axial division of labor, but multiple cultures. […]

What are the four main reasons the US has a two-party system quizlet?

What are the four main reasons the US has a two-party system quizlet? Historical Basis: Anti-Federalists opposed the ratification of the Constitution, and the Federalists supported ratification, so they split into two groups. Electoral System: Tradition: American Ideological Consensus: Why did the two-party system develop in the United States? Political factions or parties began to […]

What did the Hollywood Ten do?

What did the Hollywood Ten do? Hollywood Ten, in U.S. history, 10 motion-picture producers, directors, and screenwriters who appeared before the House Un-American Activities Committee in October 1947, refused to answer questions regarding their possible communist affiliations, and, after spending time in prison for contempt of Congress, were mostly … How much does a script […]

Can time travel possible?

Can time travel possible? Time travel to the past is theoretically possible in certain general relativity spacetime geometries that permit traveling faster than the speed of light, such as cosmic strings, traversable wormholes, and Alcubierre drives. Is time travel back in time possible? The logical paradox has given researchers a headache, in part because according […]

What are the geographic features of China?

What are the geographic features of China? Physical Features The vast land expanses of China include plateaus, plains, basins, foothills, and mountains. Defining rugged plateaus, foothills and mountains as mountainous, they occupy nearly two-thirds of the land, higher in the West and lower in the East like a three-step ladder. How did this geographic feature […]

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