What are the possible methods to alleviate the future mineral-resource shortages?
a. Increase or extend mineral supplies
b. Explore marine mineral resources
c. Conservation of mineral resources
d. Develop new techniques that use fewer minerals
e. Both a, b, and c
Ans: e. Both a, b, and c
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What caused the many small holes that are seen in this sample of scoria?
A) impacts by volcanic bombs B) dissolving away of minerals C) degassing of volatiles D) raindrops
Pantothenic acid forms which of the following linkages when it is part of CoA?
A) an ester linkage to diphosphate and an amide linkage to ethylamine B) an ester linkage to diphosphate and an amide linkage to diethylamine C) an ester linkage to diphosphate and an amide linkage to mercapto- ethylamine D) an ester linkage to diphosphate and an amide linkage to triethylamine
How are Earth's inner and outer cores different? How are they similar?
What will be an ideal response?
Along which tectonic boundary will chains of composite cone volcanoes be located?
A) Convergent boundary B) Divergent boundary C) Transform boundary D) Mantle plumes