Chronic worriers spend an average of about _____ percent of their time worrying.
a. 5
b. 25
c. 40
d. 50
e. 75
Question 2
Concerning happiness, which statement is correct?
a. An increase in annual income of as little as 10,000 significantly increases happiness in 90 of the general population.
b. Members of the Forbes 400 are only a tiny bit happier than the general population.
c. Lottery winners get a long lasting emotional boost following their windfall.
d. Single people tend to be happier than married people due to the high divorce rate.
Changes in Earth's atmospheric carbon dioxide levels over geological time.
An Estimate of the Time of Global Peak Conventional Oil Production
When young infants hold objects for a long period of time they eventually become habituated to them.
Velocity-time Graph
Average Years of Schooling versus GDP per Capita
The Geologic Time Scale