How would the eruption of a volcano cause global climate changes?
A. Dust from the volcano blocks sunlight.
B. Sulfuric acid is produced which interferes with solar radiation.
C. It can cause stratospheric ozone reduction allowing increased ultraviolet light to reach the Earth's surface.
D. Both "Dust from the volcano blocks sunlight" and "Sulfuric acid is produced which interferes with solar radiation."
E. Both "Sulfuric acid is produced which interferes with solar radiation" and "It can cause stratospheric ozone reduction allowing increased ultraviolet light to reach the Earth's surface."
Answer: D. Both "Dust from the volcano blocks sunlight" and "Sulfuric acid is produced which interferes with solar radiation."
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A. high porosity. B. high permeability. C. low porosity. D. low permeability.
Chemical weathering would be most effective ________
A) in a warm, wet climate B) in a cold, dry climate C) in a warm, dry climate D) deep beneath a mountain range
A sample of carbon dioxide occupies 22.4 L at STP. Which of the following statements apply to the sample?
A) The sample contains 6.02 x 10^23 atoms. B) The sample contains 6.02 x 10^23 atoms of oxygen. C) The sample contains 6.02 x 10^23 molecules. D) None of the above is correct.
Most of the species that are yet undiscovered are probably
A. Multicellular plants B. Invertebrates C. Mammals and reptiles D. Birds and fish E. Vertebrates