Population Dynamics Level 1

Which of the following caused an increase in the human population?

• Improved healthcare

• Domestication of plants and animals       

• Industrial revolution                                  

• All of the above

The current rapid increase in human population is the result of:

• Increased death rates in developing nations

• Decreased death rates in developed nations.

• Increased fertility rates of developing nations

• Decreased death rates in developing nations

During the 20th Century, the human population exploded, entering into an exponential growth phase. The principle reason for this explosion is:

• Genetic adaptation within the human population, allowing for longer potential life spans

• Increased survival of people over 70 years of age

• Migration to the more developed countries

• Improved medical care which limited many childhood diseases

The current world population is approximately:

• 780 million

• 328 million

• 7.8 billion

• 11 billion

Doubling time for a population can be estimated by dividing the number 70 by the annual percentage rate of increase of the population

• True

• False

The crude birth rate is the number of live births per _______ persons in a population in a given year.

• 50

• 500

• 100

• 1000

The highest crude birth rate and crude death rate are in:

• Asia

• Africa

• Europe

• Oceania

Using the rule of 70, a population growing at 2% annually would double in:

     

• 7 years

• 14 years

• 35 years

• 140 years

A population that has a crude birth rate of 46 and a crude death rate of 12 is growing at what annual percentage rate?

HINT: (CBR-CDR)/10

• 3.4

• 58

• 5.8

• 34

In general, countries with the highest fertility rates are those:

• With the least development and resources

• With the most stable governments

• With the highest life expectancies

• With low infant mortality rates