An aqueous solution is a mixture of
A. nonpolar molecules dissolved in a polar solvent
B. water dispersed in an ionic compound
C. some compound dissolved in water
D. polar molecules dissolved in a nonpolar solvent
E. none of the above
Answer: C
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Compared to all of the organisms in a phylum, organisms that share the same family
A) share a more recent common ancestor. B) are more widely distributed in the world. C) have more genetic differences. D) are more likely to occur near the equator.
The very common carbonate mineral shown here that is a clear to light-gray color is
A. hematite. B. pyrite. C. calcite. D. dolomite. E. magnetite.
All the different limiting factors that act upon a population are collectively known as environmental resistance.
Answer the following statement true (T) or false (F)
One limitation of wind power is that it ________
A) produces radioactive wastes B) involves mining C) produces water pollution D) is intermittent E) uses fossil fuels to generate electricity