Match the energy source with the correct description.?
A. ?solid fossil fuel formed from the remains of land plants
B. ?can be refined into various fuels and other components with different boiling points
C. ?a mixture of gases, of which 50-90% is methane
D. ?liquid fuel produced from coal
E. ?uranium-235 nuclei are split into light nuclei
A. ?coal
B. ?oil
C. ?natural gas
D. ?synfuels
E. ?nuclear power
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Which of these does not describe a metal at room temperature?
A. shiny B. gas C. solid D. liquid E. bendable
For more than 20 years, scientists have been analyzing expected climate change and the impact on crops grown in particular regions. For example, states that typically plant corn and soybeans may need to switch to growing cotton
Such a change is an example of A) mitigation. B) a cap-and-trade policy. C) adaptation. D) the Precautionary Principle.
What major city was affected by the 1989 Loma Prieta earthquake, how strong was it, and how much damage did it do to life and property?
What will be an ideal response?
Which type of mineral is responsible for acid mine drainage?
A. Silicates B. Phosphates C. Carbonates D. Sulfides