Unit 4 Review

Which of the following energy sources is most likely to have a negative effect on air quality?

• Coal

• Geothermal

• Sunlight

• Wind

An hydroelectric mill uses the moving water from a nearby waterfall to turn turbines and produce energy. An advantage of this type of energy source is ?

• it does not affect the environment.

• it is a renewable energy source.

• it is expensive.

• it is a nonrenewable energy source.

Tags

NGSS.MS-ESS2-4

Which energy resource is most likely to be used up by human activity?

Word bank: Solar energy, Geothermal energy, Fossil fuel energy, Wind energy

Write your answer:___________

Answer explanation

Fossil fuel energy

4. An island has weather that changes often and is hard to predict.  The island needs a steady power supply.  Which type of power source would be most affected by changes in weather?

• wind farm power plant

• natural gas power plant

• geothermal power plant

• hydroelectric power plant

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NGSS.MS-ESS2-6

5. The U.S. has a large percentage of the world’s coal resources. These resources can provide enough coal to last at least 200 years. Coal is burned as fuel to generate electrical power. Almost 40% of electrical power in Texas comes from burning coal. Based on this information, which best summarizes the advantages and disadvantages of coal power?

• An advantage is that coal is good for generating solar power. A disadvantage is that coal resources in the US may run out in 200 years.

• An advantage is there is enough coal in the US for the whole world. A disadvantage is that coal is expensive to mine and transport to power plants.

• An advantage is that coal resources are currently plentiful. A disadvantage is that coal releases pollutants when it is burned.

• An advantage is that coal can be imported from other countries. A disadvantage is that coal mining can damage plants and animals.

Tags

NGSS.HS-ESS3-1

NGSS.HS-ESS3-2

A new school, in a dry sunny region, is being constructed as a "green school" which means all efforts are made to make the school as environmentally friendly as possible. Which of the following would be the most environmentally friendly way to supplement or add to the electrical power system?

• diesel powered generators outside the building

• hydroelectric power from a school pond

• nuclear power plant in the utility room

• solar panels on the roof

Tags

NGSS.MS-ESS3-3

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

 Which of the following is a disadvantage of using coal to generate power?

• When coal is burned, pollutants such as carbon dioxide, sulfur dioxide, and nitrous oxides are produced.

• Coal is one of the most abundant fuels in the United States.

• People have burned coal to heat food, homes, and water for thousands of years.

• Some cleaner coal technologies require less coal to produce the same amount of electricity.

Tags

NGSS.MS-ESS3-4