The mineral in the image is quartz. Which of the following is true?
A. Since the mineral has irregular breakage, it must have good cleavage.
B. The mineral must have specific planes along which atomic bonds are weaker than in other areas of the structure.
C. The mineral has fractured, as it lacks planes along which it may cleave.
D. Bonds within the mineral must have varying strengths.
Answer: C
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The light inside a raindrop that emerges into the air
A. speeds up. B. slows down. C. remains at speed c. D. none of the above
What is the approximate depth of the caldera (from the rim down to the floor)?
The question is based on Map T-2, the “Umnak, Alaska,” topographic map (scale 1:250,000; contour interval 200 feet), Map T-21b, a satellite image; and Figures 35-3 and 35-4, a shaded relief map and a stereogram showing the Okmok Caldera (53°25'33"N, 168°07'38"W) on Umnak Island in the Aleutian Islands. What will be an ideal response?
________ terrestrial biome has the most biodiversity
A) Tropical rainforest B) Boreal forest C) Temperate rainforest D) Temperate deciduous forest E) Prairie
There is more land located in the Northern Hemisphere than in the Southern Hemisphere.
Answer the following statement true (T) or false (F)