The expected (and now measured, at least for Halley's Comet) size of the nucleus of a typical comet is about: A)10⁶ km. B)10⁷ km. C)10 km. D)100 m.

Name: The expected (and now measured, at least for Halley's Comet) size of the nucleus of a typical comet is about: A)10 6 km. B)10 7 km. C)10 km. D)100 m.
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The nucleus of a typical comet, including Halley's Comet, is expected to be about 10 kilometers in diameter. This size has been confirmed through observations and measurements.

The Expected (And Now Measured, at Least for Halley's Comet)