• 2022-06-07
    ___________________ refers to a rapid increase in the size of a population caused by such factors as a sudden decline in infant mortality or an increase in life expectancy. It particularly means the very great and continuing increase in human population in modern times. Optimal population size appears adequate for economy, education, healthcare, and environment.
  • Population explosion

    内容

    • 0

      5) Which increases faster, water use or population increase? It is ________ that increases faster.

    • 1

      With the_______ of living conditions throughout the world, there has been an increase in the life expectancy of the human race.

    • 2

      According to the author, the main problem of our environment today is ______. A: the increase of population B: the limited energy resources C: the more serious air pollution D: the development of technology

    • 3

      但随着人口的增加,很多古老的胡同已经消失,取而代之的是现代化的却没有特色的高楼大厦。 A: However, with the increase of the population, many old Hutongs have disappeared and replaced by modern but not characterized high-rise buildings. B: However, with the increase of the population, many old Hutongs (Chinese alleys) have disappeared to make way for modern but not characterized high-rise buildings. C: / D: /

    • 4

      Birth rates decline, and mortality of young and adults increases when the population approaches______.