In population studies, the percentage by which a population grows in a year, excluding migration, is referred to as:
A) crude birth rate
B) growth rate
C) population doubling time
D) natural increase rate
E) total fertility rate
Answer: D
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Collectively, the shield and platform of a continent are known as a ________. Fill in the blank(s) with the appropriate word(s)
Define the Coriolis effect. Which direction does Coriolis deflect winds? What does the word
"apparent" mean in the definition? What will be an ideal response?
Which of the following explains why the boiling points of ethers are more similar to those of comparable alkanes than to those of comparable alcohols?
A) Both ether molecules and alkane molecules are nonpolar. B) Hydrogen bonding between ether molecules is weak. C) Although ether molecules are polar they cannot form hydrogen bonds to other ether molecules. D) None of the above is the correct explanation.
Which material typically has the highest specific retention?
A. clay B. gravel C. sand