What are the eight chemical elements that make up over 99% of Earth's crust? What will be an ideal response?
O, Si, Al, Fe, Mg, Ca, Na, and K.
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Which of the following terms refers to a line of thunderstorms that forms ahead of an advancing cold front?
A. squall line B. wall cloud C. gust front D. roll cloud
The Humid Subtropical climates (Cfa)
A) have a pronounced dry season during the summer. B) have a pronounced dry season during the winter. C) are wet year-round and are generally located on the east side of continents. D) are wet year-round and are generally located on the west side of continents.
P and S waves are both body waves.
Answer the following statement true (T) or false (F)
Which of the following is true of igneous landscapes?
A. Basaltic lava flows tend to clump rather than spread out easily. B. Granites rarely fracture and weather very slowly. C. Volcanic rocks tend to fracture parallel to the layers. D. Columnar jointing is common in basaltic lava flows. E. None of these.