According to the text's discussion of the United States and the world environment, __________.
a. Americans consume, on the average, four times as much food per person as
people in poor nations
b. there is not that much difference in living standards between the United States and most other countries
c. most Americans eat a much larger proportion of grain than meat in their diets
d. energy resources and consumption are equally distributed throughout the world
Question 2
The Social Security system was not designed to be the main source of income for the elderly. It was originally designed __________.
a. as a public welfare program
b. to help single mothers financially care for their children
c. as an educational program to help those who had lost their jobs retrain themselves for a different type of employment
d. a form of insurance against unexpected reductions in income due to retirement,
disability, or death of a spouse
The Environment Influences Gene Expression
A Thirsty World
A woman in a net on a Congo shore. Although the importation of slaves was illegal after 1807, histor
Examples of low and high Entropy states
Distribution of the World’s Population
Tropical rain forests on the world map