Which of the following statements is true? a. Natural gas burns more cleanly tha
ID: 106741 • Letter: W
Question
Which of the following statements is true? a. Natural gas burns more cleanly than coal (i.e., gas is less polluting). b. Natural gas burns less cleanly than coal (i.e., gas is more polluting). c. Both coal and natural gas pollute to the same extent. At predicted levels of use, world supplies of natural gas are projected to that indefinitely. One of the drawbacks of the alternative fuels (i.e., oil sands, oil shake and methane hydrate) is that their combustion would emit as much CO_2, CH_4 and other pollutants at our combustion of coal, oil and natural gas. a. True b. False Which of the following conventional alternatives to fossil fuels is considered a nonrenewable energy source? a. Nuclear Power b. Bioenergy c. Hydroelectric d. All of the above are nonrenewable Algae are considered a novel source of biofuels because they produce large amounts of liquids that can be converted to, and carbohydrates that can be fermented to ethanol. a. True b. False Which of the following is not true of hydroelectric power (hydropower)? a. It is a renewable resource. b. No carbon compounds are burned in the production of hydropower. c. It is efficient as indicated by an EROI of 100:1 d. It is inefficient as indicated by an EROI of 1:1 List any two (2) characteristics (properties) of a hazardous waste. a. ___________________ b. _______________________Explanation / Answer
17) A
Yes, natural gas burns more cleanly than coal
It is true that natural gas was less effect than coal on the environment the carbon emissions released by burning of natural gas is very less when compared to coal, The natural gas has been a great replacement for coal usage in many cases.The cause of global warming by the natural gas is very low.
19) a
Nuclear power
Nuclear power is generated by the nuclear reactions to generate nuclear heat which is used in steam turbines o produce electricity in power plant.The reactors stations are constructed in France, Finland and china and also it was under construction in Brazil, India, Iran, Pakistan, Russia, south Korea
22)The two characteristics of hazardous waste were
corrosivity
It is indicated by pH in defining the characteristics of the hazardous waste because highly acidic can react with another waste result in the dangerous toxic wastes formation
The pH indicated the toxicity of the waste so that we can characterise the hazardous waste.A corrosive is anything liquid with pH less than or equal to 2 or greater than or equal to 12.5 or has the ability to corrode the steel
Toxicity
It is the greatest threat to the environment as well as human health.They are 60 contaminants on the toxicity characteristics list, These are identified by the method called toxicity characteristic leaching procedure.
The toxicity of the waste should be identified immediately as it can cause major danger and also can poison the underground water
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