What is the main concern with using low-grade ores to expand mineral reserves?
A. increase in harmful environmental effects
B. increase in price of the mineral
C. lack of adequate processing facilities
D. disruption of high-grade mining
Answer: A
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Emigration
A) refers to a move from a place. B) is the same as gross migration. C) does not involve push factors. D) is equal to the difference between voluntary migration and forced migration.
The highlands of New Guinea are among the most linguistic diverse regions on the planet. Compose a brief essay explaining why this linguistic diversity is found in New Guinea.
What will be an ideal response?
While hiking with two of your classmates, you observe an outcrop of sandstone rich in quartz and feldspar. Friend A says that the sand grains in the rock were eroded from a nearby basaltic volcano
Friend B says that the sandstone was derived from a more distant granite outcrop. Which one of your friends is right and why? What will be an ideal response?
A narrow ridge separating two cirques is called a(n):
a. horn b. arête c. roche moutonee d. drumlin