Stratovolcanoes have relatively steep sides because ____
a. ?they are composed of compacted ash
b. ?they are composed of strong basalt with little ash
c. ?their magma has moderate viscosity so lavas flow a short distance before cooling
d. ?their explosions are fast and catastrophically explosive
e. ?they grow slowly, as new magma pushes them higher, often without eruption
ANSWER: c
You might also like to view...
According to the United Nations, by 2025 two-thirds of the world's population will be living in drought-stressed conditions.
Answer the following statement true (T) or false (F)
Severe thunderstorms are capable of producing:a
large hail b. tornadoes c. flash floods d. all of the above
Hurricanes derive their energy from the laten heat of
A) vaporization. B) deposition. C) condensation. D) sublimation. E) fusion.
Briefly describe the feeding strategies employed by marine organisms including suspension feeding (filter feeding), deposit feeding, and carnivorous feeding
What will be an ideal response?