The most intense fires in shrublands occur ________.
A. in the early spring
B. when there is an intense low-pressure system in the area
C. there is a minimal amount of natural oils in the shrubs
D. when the shrubs contain large amounts of natural oils
Answer: D
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Thin, wispy clouds blown by high winds into long streamers, called mare's tails, are ____
A) stratus B) cirrocumulus C) altostratus D) cirrus
During the first Phase of migration to the United States (1800-1820), where did the majority of immigrants come from?
A) Ireland and Germany B) Southern and Eastern Europe C) Canada and Latin America D) Latin America and Asia E) England and Africa
In recent decades, popular customs have most frequently originated in
A) more developed countries. B) less developed countries. C) formerly communist countries. D) countries with large rural populations. E) Latin America and Africa.
The process of a rising, churning cloud mixing with cooler air is called ____________________.??
Fill in the blank with correct word