Which of the following are characteristics of actively erupting volcanoes?
A. Billowing clouds of ash rising into the air.
B. Fragments of molten rock blasting into the air.
C. Glowing orange lava flowing downhill.
D. All of these choices are correct.
Answer: D
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A body of rock or regolith with sufficient porosity and permeability to provide water in useful quantities to wells or springs is called a(n)
A) aquitard. B) saturated zone. C) aquifer. D) water table.
There is a sharp and definable boundary between the atmosphere and outer space
Indicate whether the statement is true or false
The light reactions of photosynthesis consume which of the following?
A) carbon dioxide B) water C) both a and b D) neither a nor b
This country is the most densely populated country in the Latin American region
a. Barbados b. Belize c. Bahamas d. Argentina