A water-filled paper cup held in a flame will not catch fire because
A. the paper cup cannot become appreciably hotter than the water it contains.
B. the inside of the paper is wet.
C. paper is a good conductor of heat.
D. water is an excellent conductor of heat.
Answer: A
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Which of the following most accurately characterizes the goal of geography?
A) The production of maps. B) Memorization of the names of places on world and regional maps. C) Memorization of the imports and exports of a country. D) Understanding distributions and movements across Earth.
What do closely spaced isobars on a map indicate?
a. strong pressure gradient b. northerly winds c. winds of low velocity d. weak breezes
The text suggests that one key demographic statistic is the percentage of people in a region who are under 15 years of age. Why is this statistic important?
A. Young people buy lots of goods and services. B. Young people will be the leaders of the future. C. Young people will feel the effects of global warming. D. Young people are reckless and impulsive. E. Young people are poised to move into their prime reproductive years.
When a mineral reserve is considered to be depleted, what is the typical percentage of mineral left in the ground?
A. 20% B. 0% C. 5% D. 50%