What does the dust veil index (DVI) refer to?
a. a way of classifying dust storms
b. a way of relating a specific eruption to its impact on climate
c. a way of measuring the severity of air pollution
d. the rate at which the earth is drying out
e. one of the factors considered in global warming studies
B
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Rising air motions are associated with warm, cold and occluded fronts
Indicate whether the statement is true or false
What is NOT a characteristic of serfs in Europe?
A) low standard of living B) low life expectancies C) monotonous lives D) ownership by a master E) they made up most of the rural population
Some solar radiation is absorbed at Earth's surface. Which of the following situations would result in the most absorption of incoming solar radiation at Earth's surface?
A. thin clouds over Antarctica B. thick clouds over the rainforest C. thin clouds over the rainforest D. thick clouds over Antarctica
________ is an organic rock formed from the compression and alteration of plant remains such as leaves, twigs, and tree trunks.
A. Coal B. Recycled C. Clastic D. Bioclastics E. Crystalline