Dust is generated by mining and transportation of coal. The large amounts of coal dust released into the atmosphere at the loading and unloading sites can cause local ________ problems.
Fill in the blank(s) with the appropriate word(s).
air pollution
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As Earth revolves around the sun, Earth's axis remains parallel to its former positions. What is this characteristic called?
a. Constant inclination b. Parallelism c. True bearing d. Angle of incidence
According to the Coriolis Effect, surface currents in the northern hemisphere veer toward which direction?
a. The left b. The right c. The north d. The south
Which of the following is not a reason for the origins of agriculture?
A) population growth B) shortages of wild food C) newly evolved plant adaptations D) improved quality of human life E) climate change
The result of China's policy of moving industry inland between 1949 and 1976 was
A) exports increased enormously. B) exports plummeted. C) the capital was moved inland. D) inland areas became rich, while the coast stagnated.