Using Figure 15.24 in your textbook, what was the overall elevation change of Mount St. Helens' peak as a result of the 1980 eruption?
A) a decrease of 400 m
B) a decrease of 900 m
C) it stayed the same
D) an increase of 100 m
Answer: A
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The anthrosphere includes human modifications to the environment.
Answer the following statement true (T) or false (F)
A wave will "break" because ________
A) the bottom interferes with its oscillatory motion B) the wind increases its speed near shorelines C) the density of water increases closer to shore D) the sediment load of water is greater near the shore E) of random molecular motion in wave forms
Explain how John Wesley Powell could have used the relative dating principles of original horizontality,
superposition, and lateral continuity on his journey through the Grand Canyon. What will be an ideal response?
On the ________ the noonday sun is directly overhead at a latitude of 23.5oN
a. winter solstice b. spring equinox c. summer solstice d. fall equinox.