Which below best describes the solute effect?
a. keeps water droplets from freezing at temperatures below 32°F
b. removal of pollutants from the atmosphere by cloud droplets
c. water droplets dissolve hygroscopic nuclei and condensation can occur at relative humidities less than 100 percent
d. evaporation of cloud droplets and growing of ice crystals in a cold cloud
e. condensation occurs at relative humidities of 100 percent
ANSWER: c
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Why is dacite considered a fine-grained rock felsic rock?
A) It contains very little silica. B) It contains a lot of silica and feldspar. C) It contains a lot of iron and magnesium. D) It contains an intermediate amount of silica.
What type of metamorphism would occur in this setting?
A. regional metamorphism B. extension C. contact metamorphism D. normal faulting
Based on the definition of a mineral, which of the following—gold, liquid water, synthetic diamonds, ice, and wood—are not classified as minerals?
What will be an ideal response?
What is one international effort to curb water pollution?
What will be an ideal response?