Compare and contrast mudflows, debris flows, and earthflows. What will be an ideal response?
Mudflows consist of small particles (at least 50% silt and clay) with a significant amount of water.
They are common in arid and semiarid environments where heavy rainfalls mix with slope material.
Debris flows consist of larger particles with less water; they are more viscous and are slower.
Earthflows are even slower; material slumps from the upper part of a hillside. They are more common
in humid climates on grassy, soil-covered slopes following heavy rains.
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Limestone is an example of a(n) ____ rock.
A. igneous B. steel ore C. sedimentary D. metamorphic E. mantle
Microbes in our digestive tract that help us digest food demonstrate a(n) ________ association
A) benthic B) symbiotic C) allelopathic D) homeopathic E) parasitic
Which of the following is an example of a push factor in migration?
A) disease in another country that is a potential destination B) famine in one's home country C) war in a neighboring country D) a higher-paying job in another country E) political freedom in one's home country
When populations approach their carrying capacity, their resources ________
A) become more scarce and growth rate approaches zero B) increase because populations are decreasing C) increase in supply but are less accessible D) are not a concern as they are usually infinite in supply E) decrease in supply but are more accessible to competitors