Which of the following statements is true about the world population?
A) In 1930, there were 4 billion people living on earth and now there are more than 10 billion people.
B) The world's population is increasing at the rate of 1.2, resulting in the addition of 80 million people per year.
C)The doubling time of the world population has been 45 years since 1930.
Question 2
The concept of synergy means:
a. that the final state of system can be achieved in many ways
b. a great burst of creative energy
c. the combined energy from smaller parts which is greater than the total if those parts functioned separately
d. the energy from a system when each part works completely separate from all other parts
Happiness in the world
Global Stratification: Income of the World's Nations
Population: Historic Patterns
Human population growth, 1700 - present
HIV in population worldwide