Why are cT air masses of minor importance for the U.S.?
A) Prevailing winds steer them away. B) Upper level subsidence limits their formation.
C) Mountains block their approach. D) No large source region is near the U.S.
D
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What is the most common way to name a geologic period?
A) by the name of the place where rocks of that period were first described B) by the name of the tectonic continent that existed at that time C) by the name of the scientist who first defined that period D) by the name of the metamorphic processes that were occurring at that time
What is the source of heat responsible for the high temperatures in Earth's mantle? What is the source of heat responsible for the high temperatures in Earth's core?
What will be an ideal response?
Why is chemical weathering more effective in humid climates than arid climates?
What will be an ideal response?