The present-day, ongoing extinction event is regarded as the ________ mass extinction event in Earth's history
A) ninth B) seventh C) first D) sixth E) second
D
Environmental & Atmospheric Sciences
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Outside of Australia and New Zealand, the majority of the Pacific Island population is of _____ origin
a. Micronesian b. European c. Asian d. aboriginal e. indigenous
Environmental & Atmospheric Sciences
If the contact between the upper light-colored sedimentary layers and the lower dark-colored metamorphic rocks is a depositional contact, what type of feature is present?
A. an ancient erosion surface B. a surface representing missing geologic time C. an angular unconformity D. All of these choices are correct.
Environmental & Atmospheric Sciences
James Hutton put forth the fundamental principle of Uniformitarianism.
a. true b. false
Environmental & Atmospheric Sciences
A ______ is a Yucataecan sinkhole
Fill in the blank(s) with correct word
Environmental & Atmospheric Sciences