What are fissure eruptions?

What are fissure eruptions?In volcanoes, lava emerges through a pipe in the top of the mountain. Sometimes, lava also reaches the surface through long cracks in the ground, called fissures. In 1783, lava spilled out of a 32-km (20-mile) long fissure in Iceland and buried 565 square km (218 square miles) of land.

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Why is Norway called Land of the Midnight Sun?

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