1.
Most of the energy we use originally came from ____
Correct Answer
A. Sun
Explanation
The energy in biomass, wind, solar energy, and fossil fuels originally came from the sun.
2.
Electrical energy can be produced from_____
Correct Answer
D. All of the above
Explanation
Electrical energy can be produced from all three: mechanical energy, chemical energy, and radiant energy.
3.
Which uses the most energy in American homes each year?
Correct Answer
D. Heating and cooling rooms
Explanation
Heating and cooling rooms consume 49% of energy in the American home each year.
4.
The U.S. consumes lots of energy. Which fuel provides the most energy?
Correct Answer
C. Petroleum
Explanation
Petroleum gives the U.S. most of its energy?
5.
Coal, petroleum, natural gas, and propane are fossil fuels. They are called fossil fuels because:
Correct Answer
B. They were formed from the buried remains of plants and tiny animals that lived hundred of millions of years ago
Explanation
They are formed from the buried remains of plants and tiny animals that lived hundreds of millions of years ago, long before the first dinosaur walked the earth.
6.
Gasoline is produced by refining fossil fuel?
Correct Answer
B. Petroleum
Explanation
Gasoline is produced by refining petroleum, which is a fossil fuel. Petroleum is a complex mixture of hydrocarbons that is extracted from underground reservoirs. It undergoes a refining process to separate different components, and one of the main products obtained is gasoline. Gasoline is a commonly used fuel for vehicles and is derived from petroleum due to its high energy content and ability to combust efficiently in internal combustion engines.
7.
Propane is used instead of natural gas on many farms and in rural areas. Why is propane often used instead of natural gas?
Correct Answer
D. All of the above
Explanation
Propane is often used instead of natural gas in many farms and rural areas for several reasons:
Portability: Propane is portable, making it convenient for use in areas where natural gas pipelines are not available.
Safety: Propane is considered safer than natural gas in certain situations, as it has a lower risk of explosion when handled properly.
Cleaner Burning: Propane tends to burn cleaner than natural gas, resulting in fewer emissions and less pollution.
Therefore, the correct option is: all of the above.
8.
What sector of the U.S. economy consumes most of the nation’s petroleum?
Correct Answer
D. Transportation
Explanation
The transportation sector of the U.S. economy consumes most of the nation's petroleum. This is because petroleum is primarily used as a fuel source for vehicles such as cars, trucks, airplanes, and ships. The transportation sector includes both personal and commercial vehicles, making it the largest consumer of petroleum in the country.
9.
Natural gas is transported mainly by ___.
Correct Answer
A. Pipeline
Explanation
Natural gas is primarily transported through pipelines due to their efficiency, cost-effectiveness, and safety. Pipelines allow for large quantities of natural gas to be transported over long distances with minimal energy loss. They also have a lower environmental impact compared to other modes of transportation such as barges or trucks. Additionally, pipelines provide a continuous and reliable supply of natural gas, making them the preferred choice for transporting this valuable energy resource.
10.
Global warming focuses on an increase in the level of which gas in the atmosphere?
Correct Answer
A. Carbon dioxide
Explanation
Carbon dioxide given off by burning fossil fuels is focused on as a contributor to global warming