igneous rocks deposited on the surface and then cooled are known as _______.
a - extrusive
b - clastic
c - core
d - intrusive
e - detrital
a - extrusive
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Plants adapted to the desiccating effects of the land environment with the evolution of
a. a cambium layer. d. cutin. b. scales. e. bark. c. leaves.
Which of the following best matches the description?Areas that include swamps, tidal marshes, and estuaries.
A. urban sprawl B. ribbon sprawl C. zoning D. wetlands E. land-use planning F. floodplain zoning G. tract development H. megalopolis I. floodplain J. multiple land use
Approximately how much energy was released in the Mexico City earthquake in 1980?
A) 56,000,000,000,000 kg worth of explosives B) 1,800,000,000,000 kg worth of explosives C) 1,800,000,000 kg worth of explosives D) 56,000 kg worth of explosives
According to Figure 20.23 in your textbook, scientists trace dust origins by analyzing
A) mineral particles. B) pollen grains. C) microbe DNA. D) element concentrations.