Population：练习题

• a.

  A shift from subsistence farming to industrial labor in urban areas.

• b.

  An increase in the number of women entering higher education and careers.

• c.

  A decrease in infant mortality rates due to better healthcare infrastructure.

• d.

  The implementation of an anti-natalist policy providing tax incentives for smaller families.

• a.

  The theoretical ideal number of people that can be sustained by the available resources at a given level of technology.

• b.

  A situation where the population exceeds the carrying capacity, leading to a decline in the standard of living.

• c.

  A state where the natural increase rate is negative because the crude birth rate is lower than the crude death rate.

• d.

  A situation where there are too few people to sufficiently develop the resources of a country or region to improve the standard of living.

• a.

  The immediate increase in life expectancy always offsets the drop in birth rates.

• b.

  Anti-natalist policies typically lead to a sudden increase in the infant mortality rate.

• c.

  International trade laws prevent governments from intervening in domestic population trends.

• d.

  Deep-seated cultural or religious preferences for large families and rural labor needs.

• a.

  Carrying capacity

• b.

  Threshold population

• c.

  Optimum population

• d.

  Population density

• a.

  Food security exists when all people have physical and economic access to sufficient, safe, and nutritious food to meet their dietary needs.

• b.

  Food security is solely dependent on a country's ability to produce enough grain to feed its entire population.

• c.

  Food security is achieved only when the natural increase rate of a country falls below \( 1\% \).

• d.

  Food security is the same as carrying capacity and describes the limit of agricultural land.

先自己写一遍答案，再对照解题步骤。

先自己写一遍答案，再对照解题步骤。

先自己写一遍答案，再对照解题步骤。

先自己写一遍答案，再对照解题步骤。

先自己写一遍答案，再对照解题步骤。