Explain this statement: The world's population growth has slowed, but the world's population is still growing. Include a comment about where the slowing has occurred
What will be an ideal response?
The population of humans on the planet is still increasing. However, the rate at which it is growing has started to slow down. A very large drop in TFR in developing countries has slowed population growth dramatically. In China, for example, crude birth rate was cut in half between 1972 and 2007.
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A rock with very low porosity will most often have a
A) low permeability. B) high permeability. C) large proportion of open spaces. D) very high density.
The ocean conveyor belt is responsible for
A) keeping the North Atlantic region cool enough to form sea ice B) keeping northern Europe relatively warm C) changing world climate on 100,000-year time scales D) the major adverse aspects of the Greenhouse Effect
Which of the following is true of the alcohol functional groups in 1,3-butanediol?
A) One is primary and one is secondary. B) One is primary and one is tertiary. C) Both are primary. D) Neither is primary.
What is the name of the acid which dissociates to give the cyanide ion, CN-?
A) cyanic acid B) cyanidic acid C) cyanous D) hydrocyanic acid