NCSCOS Grade 8 Physical Science - 8.P.2 Diagnostic Energy
Quiz by NCDPI
Grade 8
Science
North Carolina Standard Course of Study
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10 questions
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- Q1Burning fossil fuels increases the amount of carbon dioxide in the atmosphere. What is the LIKELY negative effect on Earth if extra carbon dioxide is added to our atmosphere?global warmingcleaner airincreased plant growtha hole in the ozone layer30s8.P.2.1
- Q2The long-ago deposited plant and animal remains, now buried, have been compacted and transformed into coal and oil. Which of the following is a POSITIVE consequence of using fossil fuels.adds to air pollutioncontributes to acid rainrequirement for photosynthesiscontributes to global warming30s8.P.2.1
- Q3Solar cells harness the sun's energy and convert it into electricity. However, the cost of this clean energy is much higher than the cost of energy produced using fossil fuels. What development might reduce the prices of solar energy?Create more sunny daysInvent cheaper solar panelsUse more fossil fuelsUse more wind energy30s8.P.2.1
- Q4Which would be the most helpful to prevent global climate change?produce energy using coalproduce energy using natural gasproduce energy using oilProduce energy using hydroelectric plants30s8.P.2.1
- Q5Which is a possible disadvantage of using flowing water to produce electricity?creates reservoirsecosystem damage and loss of landonly suitable for industrial usereduced carbon dioxide emission30s8.P.2.1
- Q6Which is a problem using wind turbines to produce energy?Wind turbines create a large amount of pollutionWind turbines are only efficient in certain areasWind turbines occupy a small area of landWind turbines produce a large amount of energy30s8.P.2.1
- Q7Which is an example of a renewable energy resource?gasoilsolarcoal30s8.P.2.2
- Q8Why is coal considered a non-renewable resource?Coal is present everywhereThere are substitutes for coalOnce it is mined, it cannot be replaced.Coal cannot be recycled30s8.P.2.2
- Q9What is one way to conserve water?fix leaky faucetsdrink 8 oz of water a daytake baths instead of showerswash dishes under running water instead of in a dishwasher30s8.P.2.2
- Q10Instead of clear-cutting land and moving on, a local lumber business decides to start farming trees: cutting some of the trees and planting the fields they have just cut with saplings. Compared to the old method of clear-cutting, evaluate the impact this new strategy will have on the environment.Negative, since it is a sustainable plan to use a renewable resource.Positive, since it is a sustainable plan to use a renewable resource.Positive, since the lumber company will immediately make more money.Negative, since it is destroying much of the environment.30s8.P.2.2