Discuss methods of absolute dating that may provide insight into relatively recent climate change. How are these
methods employed? What will be an ideal response?
The student should discuss how some techniques, including a combination of radiocarbon
and tree-ring dating and dating by analysis of uranium 234/thorium 230 in stalagmites, may
provide insight into relatively recent changes in climate.
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Judge the following sentence according to the criteria given below: The frequency of dust storms
impacting Beijing, China, has been increasing BECAUSE fallout of herbicides and pesticides in the Arctic is common. a. The assertion and the reason are both correct, and the reason is valid. b. The assertion and the reason are both correct, but the reason is invalid. c. The assertion is correct, but the reason is incorrect. d. The assertion is incorrect, but the reason is correct. e. Both the assertion and the reason are incorrect.
If a neutral element has the following chemical notation, how many electrons does it have?carbon-13
A. 6 B. 7 C. 12 D. 13 E. none of the above
Research a part of the world that has water stress problems, answering these questions: What is the climate of the area, and what is the natural availability of water? Which is used primarily, surface or groundwater? Then discuss in detail the
causes of water stress. Is it because the supply is contaminated? Are there access problems? Is the water being monopolized by a powerful person, agency, or firm?
Minerals that have strong bonds between flat crystal surfaces tend to
A. show well-developed cleavage. B. show poor cleavage. C. cleave more easily. D. have a well-developed streak.