1. According to the textbook, there is a finite amount of time that our civilization can exist based on which of the following?

A. Our civilization is based on non-renewable resources.

B. Our production of nuclear weapons will lead to mass destruction.

C. At the present birth and death rates, our population will outgrow its capacity to feed itself.

D. Plagues and diseases from non-industrialized countries will kill the population.

2. Behind the United States, the world's second largest emitter of energy-related emissions is:

A. Mexico.

B. China.

C. The Soviet Union.

D. Europe.

3. In the year 2000, fossil fuels accounted for __________ of energy use while new renewable sources accounted for only __________.

A. 50%; 12%

B. 70%; 5%

C. 77%; 2%

D. 97%; 3%

4. Which of the following regions has the largest crude oil and natural gas reserves?

A. North America

B. Central and South America

C. Europe

D. Middle East