Answer:
The mass of the asteroids is 0.000334896182184 times the mass of the Earth.
39929.4542466 m
Explanation:
Total mass of the asteroids

= Mass of Earth = 
The ratio is

The mass of the asteroids is 0.000334896182184 times the mass of the Earth.
Volume is given by

The diameter is 39929.4542466 m
The message is the information being communicated from one place to another.
It used to be called the "intelligence". But as time went on, it became
harder to ignore the obvious fact that that was going too far, and the
label was changed to the more IQ-neutral "message".
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