Question: According to the graph below, how frequently do objects the size of comet Temple 1 strike Earth? a. Once in Earth's history b. About once

According to the graph below, how frequently do objects the size of comet Temple 1 strike Earth?
a. Once in Earth's history
b. About once every hundred million years
c. About once every million years
d. About once every thousand years
Figure

The graph above (from Figure) shows how often impacts occur for objects of different sizes. The photo above shows comet Temple 1 moments before the Deep Impact spacecraft crashed into it.

1 hour 1 day 1 year atmospheric explosion or small crater 100 years tsunamis, widespread devastation, climate change 1000 years 1 million years mass extinction 100 million years once in Earth's history 10 m 1 km 100 m 10 km 100 km 1 km impactor size (crater is about 10 times larger) typical time between impacts

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