Which of the letters represents the summer solstice for the Northern Hemisphere?
A. A
B. B
C. C
D. D
Answer: C
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To see the aurora australis, you have to travel to the NORTHERN | SOUTHERN Hemisphere
In Australia, the summer solstice occurs a few days before Christmas (December 25)
Indicate whether the statement is true or false
Volcano A erupts rocks with SiO2 content ranging from 49% to 52% whereas volcano B, 100km away, erupts materials with SiO2 content of 62-68%. Which statement best characterizes these two volcanos?
A) Volcano A is probably a shield volcano with typically quiescent eruptions, whereas Volcano B is likely a stratovolcano characterized by violent, explosive eruptions. B) Both volcanos are violent, explosive volcanos that spread ash continent wide. C) Volcano A is likely to be a supervolcano with violent eruptions, whereas volcano B is probably a shield volcano with quiescent eruptions. D) Both volcanos are shield type volcanos that are characterized by quiescent eruptions.
Of all the old-growth forests that stood in the United States before the European settlement, how much remains today?
A. About 50% B. About 15% C. Slightly over 25% D. Less than 10% E. About 35%