2. False
The statement "the eruptions of the Hawaiian volcanoes may be described as explosive in comparison to the 1980 Mount St. Helens eruption" is incorrect/false.
Mount St. Helens' magma is inherently more explosive than others like Hawaiian volcanoes. It has higher amount of water & silica (64% silica and about 4% water) and it delivered to the earth's surface at higher pressure 'cause of higher magma viscosity.
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