Which of the following is the definition of molarity?
A) moles of solute/1000 grams of solvent
B) moles of solute/liter of solution
C) moles of solute/liter of solvent
D) moles of solvent/1000 grams of solute
B
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____ occurs when one or more populations of a species is no longer found in an area it once inhabited, but is found elsewhere.
A. Ecological extinction B. Local extinction C. Biological extinction D. Natural selection E. Speciation
The sun is more likely to appear red at sunset than in the middle of the day as a result of the
A) scattering of lower frequencies by larger particles in the air. B) longer path of air through which sunlight travels. C) lower frequencies of light emitted late in the day by the sun. D) pollutants emitted by humans in daylight hours. E) absorption effects of the smaller particles in the air.
What have been some of the causes of the increased amount of oil found in the ocean? What is the
largest source of additional oil? What will be an ideal response?
The stable conditions of deep benthic environments seem to favor ________ infaunal organisms.
A. symbiotic B. carnivorous C. deposit-feeding D. surface-dwelling