Unit 3: Sustainability and Population Test

What is a potential disadvantage of a country having more elderly people than young people?

• Too many children being born

• Not enough people employed to support the economy

• Resources become scarce

• All of the above

Which of the following situations would cause an increase in a population’s size?

• Low birth rate, low death rate

• Low birth rate, high death rate

• High birth rate, low death rate

• High birth rate, high death rate

Which of the following would cause a decrease in a population’s size?

• High birth rate, high immigration

• High death rate, high immigration

• High birth rate, high emigration

• High death rate, high emigration

What happens when a population has exceeded its carrying capacity?

• The environment cannot support it

• Immigration occurs

• The birth rate increases

• The death rate stays the same

Which type of country tends to have the highest population growth rates?

• Underdeveloped, poor countries

• Underdeveloped, wealthy countries

• Industrialized, Western countries

• Industrialized, Asian countries

Fertility rates have started to decrease in many nations. How has this affected the size of the human population throughout the world?

• The population size is steady

• The population size is decreasing

• The population size is still increasing

• Fertility rate are not related to population size

Which of the following are reasons for starvation worldwide?

• Not enough food production in relation to the increasing population growth

• Droughts and crop failures

• Incapability of transporting food to those who need it

• All of the above

Which of the factors listed below DO NOT affect the biotic potential of a population?

• Age in which reproduction begins

• Percentage of life span in offspring bearing age

• Number of offspring produced

• All three factors affect the biotic potential

Limit(s) that prevent organisms from reproducing at their biotic potential are called:

• Demographics

• Exponential growth

• Density dependent and independent factors

• Zero population growth

The three main factors that affect the growth of the human population are:

• Cost of living, marriage rates, and age

• Birthrate, death rate, and age

• Urbanization, death, disease

• Longer life expectancy, lower birth rate, and marriage rate