Which fuel is not considered biomass?
A. wood
B. crop residues
C. charcoal
D. animal manure
E. coal
Answer: E
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Bond energies increase in going from C-N (lowest) to C-O to C-F (highest). Explain this trend based upon the atomic sizes of these atoms as deduced from their positions in the periodic table.
A. In going from nitrogen to oxygen to fluorine, the atoms get smaller. This means a greater nuclear charge, which translates into stronger chemical bonds. B. In going from nitrogen to oxygen to fluorine, the atoms get larger. This means a greater nuclear charge, which translates into stronger chemical bonds. C. In going from nitrogen to oxygen to fluorine, the atoms get smaller. This means that the bonding atoms are closer together, which translates into a greater bond energy. D. In going from nitrogen to oxygen to fluorine, the atoms get larger. This means that the bonding atoms are farther apart, which translates into a greater bond energy.
The rock cycle was conceived by James Hutton in an attempt to explain how
A. sedimentary rocks are formed deep within Earth. B. the Earth was formed. C. older rocks become new sediment. D. metamorphism occurs in surface environments.
Anthropogenic emissions are those caused by animals
Indicate whether the statement is true or false
Major coastal cities such as Charleston, South Carolina, have to find a delicate balance between supplying enough water for a healthy, growing city and preventing contamination of their groundwater supplies with saltwater due to overpumping
What steps could be taken to counteract the effects of saltwater contamination without abandoning the well? Explain. What will be an ideal response?