The "year without a summer" may have been caused by ____
A) soot from coal fires
B) particulate matter and gases from volcanoes
C) a dust cloud produced when a meteorite collided with Earth
D) deforestation
B
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When a large number of tornadoes develop in association with a particular weather system (typically six tornadoes or more), it is referred to as a ____
a. megacyclone b. mesocyclone c. tornado family d. tornado epidemic e. tornado outbreak
Erosion of the Acadian highland resulted in deposition of ____
a. reefs b. fluvial sediments c. evaporites d. volcanic tuffs e. limestones
A tipping-bucket rain gauge measures rainfall by [INSERT FIGURE 7-25B. NO CAPTION]
A) measuring the volume of the water that spills out of the buckets B) counting the number of time the bucket tips over C) collecting the water that spills out of only one of the two buckets D) weighing the rainwater that spills out of the buckets
Volcanic bombs have a twisted, streamlined shape, which indicates that they ____
A)cooled quickly underwater B)were formed from ropy, viscous mafic flows C)were erupted as globs of magma that cooled and solidified during their flight through the air D)have high amounts of dissolved gases and low amounts of sodium E)were erupted gently from a shield volcano and cooled as they moved downslope