Exam 13: Energy

Explain why the concerns about nuclear power plants changed in the year 2001.

Brazil, the second largest ethanol producer, makes its ethanol from the residue of sugar cane.

It has been estimated that capturing the wind's energy at the world's best sites would only produce about 50% of the electricity currently being used worldwide.

The leading renewable energy source that is used to produce electricity today is

Scientists and energy experts who have evaluated energy alternatives have come to three general conclusions. a.What are these conclusions? State each one and provide a single sentence as explanation for each.

The concept of net energy most closely reinforces the

What percentage of the commercial energy used in the United States is wasted?

Wind is actually an indirect form of ____________________ energy.

Cells that convert solar energy directly into electricity are called

World oil supplies and prices are expected to be controlled long-term by

Germany, although a cloudy country, has more solar water heaters and solar cell panels than both ____________________ and ____________________.

All of the following are indirect forms of solar energy except

One disadvantage of wind power is the fact that it cannot be stored.

The energy source with the highest net energy ratio for transportation is

About ____________________% of the world's proven crude oil reserves are in the hands of government-owned companies.

Which of the following is a disadvantage of hydropower?

Large reserves of ____________________ are located in Canada and are now considered to be conventional oil reserves, second only in size to those in Saudi Arabia.

Burning of coal is responsible for roughly a third of the toxic mercury emitted into the atmosphere.

Coal can be converted to

Explain this statement: The highest priority in fighting the war on terror must be to reduce America's dependence on foreign oil.