About 15.000 years ago. an ice dam holding back Glacial Lake Missoula broke and

Question

About 15.000 years ago. an ice dam holding back Glacial Lake Missoula broke and caused massive flooding. This flooding caused the formation of the Great Lakes in over a period of just several months. The decay of radioactive material in the Earths crust and mantel does not account for the lack of solar flux from the relatively 'faint sun' in past climates. which is more dense than the rest of the sea water, as it contacts warmer water below the surface In a volcanic eruption cloud, there are small particles of volcanic material colliding with one another at high speeds, and these cofcsions can result in separation of charges in the volcanic cloud that result in lightning.

Explanation / Answer

Q 71) False

Q 72) True

Q 73) Brinicle

Q 74) True

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