Most supply-side energy policies currently under consideration in the United States
A) suggest a radical restructuring toward renewable resources in the next 10 years.
B) shift our energy resources from fossil fuels to solar, wind, and nuclear in the next 20 years.
C) shift almost half of the current fossil fuel use to hydroelectric power and solar power in the next 20 years.
D) continue to rely on the same fossil fuel resources without significant shifts toward sustainability.
D
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In a particular titration experiment a 30.0 mL sample of an unknown monoprotic acid required 25.0 mL of 0.200 M NaOH for the end point to be reached. What is the concentration of the acid?
A) 0.120 M B) 0.167 M C) 0.240 M D) 0.333 M
What is the correct order of increasing wind speed?
A. tropical depression, hurricane, tropical storm B. tropical depression, tropical storm, hurricane C. hurricane, tropical depression, tropical storm D. tropical storm, tropical depression, hurricane E. hurricane, tropical storm, tropical depression
World heritage refers to
A) sites perceived to have outstanding universal value for all of humanity. B) the social ties, networks, institutions, and trust that members of a group use to achieve mutual benefits. C) the view that the diffusion of Western science, technology, and practices to other peoples would enable them to advance socially and economically. D) awareness of cosmic forces influencing human use of the environment. E) the idea that global and local forces interact and that both are changed in the process.
The reactants shown schematically below represent iron oxide, Fe2O3 , and carbon monoxide, CO. Which of the following is the correct full balanced chemical equation for what is depicted?
A. Fe2O3 + 3 CO ? 3 FeO2 + 2C B. Fe2O3 + 3 CO ? 2 Fe + 3 C2O C. Fe2O3 + 3 CO ? 2 Fe + 3 CO2 D. Fe2O3 + 3 CO ? 3 FeO + 2 C