About 50 percent of North American tornadoes are classified as violent (EF4-EF5)

Indicate whether the statement is true or false


FALSE

Environmental & Atmospheric Sciences

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How well pores are connected to allow groundwater flow is known as _____.

a.) permeability b.) porosity c.) aquifer d.) aquitard

Environmental & Atmospheric Sciences

Why do hot spots form a trail of extinct volcanoes over time?

A) The mantle plume moves with Earth's rotation. B) The tectonic plates that contain the volcanoes move over time. C) The heat and debris from the eruptions are enough to form nearby islands. D) The mantle-plume hypothesis assumes the hot plumes are wedge-shaped.

Environmental & Atmospheric Sciences

Refraction causes bays, near headlands, to be areas of ________ surfing and sites of ________

A) good; deposition B) good; erosion C) poor; deposition D) poor; erosion

Environmental & Atmospheric Sciences

A softball is tossed upward with 100 J of kinetic energy in the presence of air resistance. When the ball returns to its initial level its kinetic energy is

A. less than 100 J. B. 100 J. C. more than 100 J. D. need more information

Environmental & Atmospheric Sciences