The short answer is that while lava is hot, it’s not hot enough to melt the rocks that make up the side of the volcano.
The incredible Blue Lake at Mount Gambier fills one of the craters from the last volcanic eruption just 5,000 years ago.
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We know a lot about the potential negative effects of ocean acidification on marine creatures. But might some species actually benefit? The answer is yes, but this isn’t necessarily a good thing.