Which of the following factors control the nature of volcanic eruption?
a) Amount of dissolved gas in the magma
b) Temperature of the magma
c) Silica content of the magma
d) All of these
e) Only (a) and (b)
Ans: d) All of these
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All of the high-level nuclear waste generated at nuclear power plants in the U.S. since the 1950s is stored at a permanent, central facility.
Answer the following statement true (T) or false (F)
The long, complex process of petroleum generation in the Persian Gulf began when the remains of marine organisms accumulated with bottom sediments and were buried
Indicate whether the statement is true or false
Wheat is the dominant crop of the moist subtropical climate type.
a. true b. false
In relation to wildfire, the California redwood and the southern yellow pine are ________
A) fireproof B) in biomes where fire is not common C) plants that need fire to open their cones D) heavily damaged by the least amount of fire E) susceptible to starting wildfires by bursting into flame