How do the eruptions that created the Columbia Plateau differ from eruptions that create large composite volcanoes?
What will be an ideal response?
The Columbia Plateau eruptions were fissure eruptions of fluid basalt rather than violent pyroclastic andesitic eruptions. The flood basalts flow outward and form large flat plateaus rather than building tall conical structures.
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As a consequence of its location, traders from _____ arrived in Southeast Asia long before the Europeans.
A. China, India, Middle East B. Chinese, Japanese, Koreans C. the Pacific Islands D. the Philippines
Frontal wedging plays a major role in producing clouds and precipitation in the midwestern portion of the US.
Indicate whether the statement is true or false.
The principle of lateral continuity says that if a fault occurs in a sequence of sedimentary rocks, the fault is older than the rocks
Indicate whether the statement is true or false
The Intergovernmental Panel on Climate Change's (IPCC) most recent assessment report in 2014 asserted what?
a) Earth's climate is changing, but there is no evidence that human emissions have any correlation with this change b) climate can be influenced by humans, but no significant changes in climate have happened in the past 50 years c) it is 95-100% certain that humans have been the dominant cause of significant climate change over the past 50 years d) human activities cannot cause climate change - climate change is caused by volcanoes and plate tectonics