What geologic factors contributed to the severity of the Gros Ventre Landslide of 1925?
What will be an ideal response?
Answer: 1) Underlying sedimentary strata tilt parallel to the slope. 2) The Gros Ventre River eroded through the sandstone, leaving the sandstone layer in a precarious position over clay bed that was becoming slick.
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Surface processes of weathering and erosion tear the land down. What builds it up?
A) actions of plate tectonics B) deposition C) both a and b D) none of the above
Why do scientists formulate hypotheses?
A) to explain the problem that accounts for existing data and predict additional phenomena that should exist B) to state a law C) to explain something that cannot be observed or measured by scientific procedures D) to generalize data and observations about data without necessarily offering an explanation
The Convention on Biological Diversity, ratified by 191 countries, seeks to reverse the global decline of biodiversity and share the benefits from the use of genetic resources. What has slowed this progress?
A. penalties too severe for violators B. harsh enforcement mechanisms C. the lack of ratification by the United States D. focusing on ecosystems rather than individuals E. consideration for the traditions of indigenous peoples
A population
A. consists of all individuals of a given species living in the same area. B. consists of all species on Earth. C. consists of all the plants and animals in a given region. D. consists of a given species and all of the other species it consumes.