The least reliable diagnostic property of minerals such as quartz is _______
a) hardness
b) crystal form
c) luster
d) specific gravity
e) color
Answer: e) color
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How does increased cloud cover cause an increase in the Earth's average surface temperature? How does increased cloudiness cause a decrease in average surface temperatures?
What will be an ideal response?
A clerk can lift containers a vertical distance of 1 m or can roll them up a 2-m-long ramp to the same elevation. With the ramp, the applied force required is about
A) half as much. B) twice as much. C) the same.
The asthenosphere is the outer layer of Earth, which is rigid and is broken into individual plates
a. True b. False
Use the following information to answer the following question. There are two main approaches to reducing the risk from landslides: hard and soft. Hard approaches involve construction of retaining walls, slope reduction, and drainage improvements. Soft approaches include zoning restrictions and land use regulations. Read the following mass wasting scenarios to determine if the event involved hard, soft, or both approaches.The city council passes an ordinance preventing a development group from building on a historical landslide.
A. Hard B. Soft C. Both