Weathering processes are primarily responsible for the concentration of what types of ore?
A) gold
B) cadmium
C) aluminum
D) copper
C
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If you stand on a pair of bathroom scales, explain how the readings change as you shift your weight gradually from side to side. What rule governs the readings on the scales?
What will be an ideal response?
Despite the similar appearance of mammoths to elephants, the mammoths and elephants are not related
a. True b. False
The trickling-filter system and the activated-sludge system both require
A) high levels of oxygen to promote aerobic decomposition. B) high levels of carbon dioxide to adjust the pH of the water for bacterial action. C) the addition of large amounts of chlorine to kill pathogens. D) the addition of large amounts of ammonia as nutrients to support decomposers.
The distance of Earth from the sun plays a major role in the determination of the seasons
Indicate whether the statement is true or false