1.	Which of the following plates has the slowest rate of movement at less than 2.5 cm/year ?
	Arctic Ridge
	North American Plate
	Mid-Atlantic Ridge
	East Pacific Rise
	Answer: Arctic Ridge Explanation: The movement of the crustal plates (due to convection currents in the mantle) causes the formation of various landforms and is the principal cause of all earth movements.The Arctic Ridge has the slowest rate (less than 2.5cm/year) and the East Pacific Rise in the South Pacific (about 3,400 km west of Chile), has the fastest rate (more than 15cm/year).
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2.	What was the name of the mega-ocean that surrounded the single continental mass before the continental drift as described by Alfred Wegener ?
	Panama
	Panthalassa
	Pigmalion
	Pangaea
	Answer: Panthalassa Explanation: Panthalassa was the name of the mega-ocean that surrounded the single continental mass, Pangaea before the continental drift as described by Alfred Wegener.
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