Geysers periodically boil and erupt because .
A) new groundwater flows in to replace that lost in the prior eruption, this takes time
B) each injection of hot magma at depth triggers another episode of boiling in groundwater
C) the god Vulcan is at work at his subterranean forge
D) great pressures from deep water- filled chambers prevent water from boiling until higher temperatures are reached; eventually enough heat is supplied by the hot (volcanic) rocks to expand the water and let it boil anyway

Question

Quizplus · Accepted Answer

Geysers erupt when water in underground chambers is heated by volcanic rocks, creating pressure that eventually forces the water to boil and erupt.

Geysers Periodically Boil and Erupt Because