Thursday, August 14, 2008

Types of Lava

Lava is the molten rock thrown out by a volcano. The most common forms of lava are basalt, which is thin and runny, and cools to a heavy , black rock, and rhyolite, a thick, pale, biscuit-coloured lava. How a volcano erupts depends on the thickness of the lava.

Also Visit Darwin site.

1 comment:

yuva said...

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first
and
second