Iridium is a component of cosmic dust that rains down upon the earth at a constant rate. why did luis alvarez suggest measuring iridium levels in the k-t boundary?
a. he hypothesized that the layer was caused by a supernova explosion.
b. he was looking for a way to determine how quickly the layer had been deposited.
c. he hypothesized that the layer was caused by an asteroid impact.
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Iridium is a component of cosmic dust that rains down upon the earth at a constant rate. why did lui...
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