A dam is constructed on the Crymea River. Explain how this will affect the river and the work that the river performs both upstream as well as downstream
What will be an ideal response?
Answer: A reservoir will form upstream, which will create a temporary base level for the upstream segment. This will result in a lower velocity and, by extension, deposition. Downstream, water is being released from the dam at a high velocity, which will increase erosion.
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"Edge effects" become particularly problematic when
A. forests undergo biodiversity changes as a result of climate change B. trying to manage and protect island biodiversity C. preserves have a very large area and a roughly circular shape D. formerly large habitats are reduced to small fragments
With the assistance of powerful super computers, modern-day small-scale maps of Earth can now be made that are distortion free
Indicate whether the statement is true or false
You live in a seismically active area and there are steep mountain slopes that show evidence of past large landslides. A geologist uses radiocarbon dating and determines that all of the landslides are 1000 +/- 5 years old
He also determines that there is an active fault in the area that moved in the last 1000-2000 years but he can't date it precisely. Which of the following is a reasonable conclusion? A) There must have been a major drought 1000 years ago that triggered the landslides. B) Radiocarbon dating is not a good dating technique or it could separate the ages of the slides. C) There was probably an earthquake ~1000 years ago. D) There must have been people in the area 1000 years ago, and they cut down the trees that were dated for determining the age of the landslide.
Discuss the phenomenon of global urbanization
What will be an ideal response?