Which of the following solutions is isotonic with a 0.15 M NaCl solution?
A) 0.15 M glucose, C6H12O6
B) 0.30 M glucose, C6H12O6
C) 0.10 M aluminum chloride, AlCl3
D) none of these
B
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Which of the following best explains why some volcanoes erupt so violently?
A. combustion as nitrogen gas compounds react with atmospheric oxygen B. rapid temperature drop as magma reaches the surface environment C. rapid decompression of dissolved gases D. cooling effect of seawater beneath island arc volcanoes E. all of the answers listed here
Which of the following statements with respect to Earth's climate is NOT true?
A. variation in energy output from the Sun is too small to explain current warming. B. the greenhouse effect is a natural phenomenon. C. Earth is currently in a strong warming trend. D. atmospheric carbon dioxide levels are currently well within Earth's recent operating range. E. past climate changes have caused societies to collapse.
Ecotones are the ________
A) studies of specific biomes by ecologists B) sounds that animal communities make in ecosystems C) areas between territories of organisms D) interactive behaviors leading to communication E) transitional zones between ecosystems
A process by which banks designate an area within which they refuse to lend money for improvements is
A) blockbusting. B) filtering. C) gentrification. D) redlining. E) zoning.