The unit of weight used for precious stones is the carat (1 carat = 200 mg, exactly). If a particular 1.25 carat diamond cost $7000.00, what is the cost of a collection of identical diamonds which weighs 1.00 ounce? [1 ounce = 28.35 grams]
A) $28,000
B) $35,000
C) $16,000
D) $790,000
D
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Mount McKinley, 6194 m (20,320 ft); air pressure at the summit?
Using the graph you prepared in Figure 10.2, list the approximate answers to the following, assuming standard atmosphere conditions. The first answer is provided for you in brackets.
Which of the following reactions involves the addition of two equivalent groups to the two ends of a double bond?
A) hydration B) hydrogenation C) both a and b D) neither a nor b
What is the core argument in the concept "tragedy of the commons"?
A) Monetary systems are often manipulated by elites. B) Governments will intervene when it is in their direct interest to do so. C) Resources that are shared among several groups are ruined by individual actions. D) Overpopulation is the result of lack of family planning methods. E) Famine is likely to result after an isolated area experiences crop failure.
When we look at a cloud, it appears white because countless cloud droplets ____
a. absorb all wavelengths of visible sunlight b. reflect all wavelengths of visible sunlight into space c. scatter all wavelengths of visible sunlight away from Earth d. scatter all wavelengths of visible sunlight toward Earth e. scatter all wavelengths of visible sunlight in all directions