Most of the rocks of the Earth's crust are made up of which of the following mineral groups?
a. silicates
b. oxides
c. carbonates
d. tungstates
e. vanadates
A
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Cowbirds are so named because they followed the large herds of cows that were driven throughout the American west before large tracts of land were fenced. Cowbirds consumed the insects that invariably followed the herds
There was no obvious benefit or other effect on the herds. This is an example of ____________________. Fill in the blanks with correct word
Describe a possible scenario for the formation of a large elliptical galaxy
What will be an ideal response?
Progesterone, which is present in humans as a single stereoisomer, has six stereocenters. Human progesterone is one of how many possible stereoisomers for this structure?
A) 6 B) 32 C) 64 D) 128
If reducing waste can increase efficiency, why is the output of industrial waste still so great? What is the application of industrial ecology and life-cycle analysis to these problems?
What will be an ideal response?