Pyroclastic eruptions on a snow-capped volcano
A. can create dangerous lahars.
B. cause the volcanic ash to solidify.
C. stop when the melting snow cools the eruption.
D. are physically impossible.
Answer: A
You might also like to view...
Two identical blocks of iron, one at 10°C and the other at 20°C, are put in contact. Suppose the cooler block cools to 5°C and the warmer block warms to 25°C. This would violate the
A) first law of thermodynamics. B) second law of thermodynamics. C) both A and B D) neither A nor B
Which of the following countries has suffered in the twenty-first century from ethnic cleansing?
A) Kazakhstan B) Uzbekistan C) Tajikistan D) Kyrgyzstan E) Turkmenistan
Stars spend most of their life span as giants
Indicate whether the statement is true or false
Oceans heat and cool more slowly than land because of
A. lack of mixing through the water column. B. oceans' high specific heat dampen temperature changes. C. oceans' lack of transparency dampen temperature changes. D. great amounts of latent heat available to directly warm ocean water.