In 1970, the Financial Costs of Air Pollution

Multiple Choice

In 1970, the financial costs of air pollution

A) included half a billion dollars' worth of damage to crops.
B) contributed $1 trillion to the US national debt.
C) was approximately $1 per person per year.
D) included $250,000 for washing polluted cars.
E) was much higher than today because cars were less efficient.