Air pollutants come only from human sources.
Answer the following statement true (T) or false (F)
False
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Why do some minerals exist in more than one color?
What will be an ideal response?
This would not typically happen with the approach of a warm front
A) pressure drops. B) thunderstorms. C) high clouds giving way to lower clouds. D) rising temperatures. E) rising dew points.
This photograph shows light-colored granite and darker diorite (both igneous rocks). Which of the following statements is true?
A. The granite is younger because it crosscuts the diorite. B. The light-colored unit is younger because granite is more continental than diorite. C. The diorite is older because its weathered surfaces are darker. D. All of these.
It takes ________ energy to produce aluminum from ore than to obtain it from recycled sources
A) 7 times more B) roughly the same amount of C) 20 times less D) 7 times less E) 20 times more