science

hree light beams encounter a medium. One light ray is reflected, while the other two are absorbed. How can the medium be described?

Transparent
Translucent
Opaque
or Clear

In satellite communication, does the satellite...

Receive radio signals
Prevent radio signals
Send radio signals
or Reduce radio signals

How does radioactivity make it possible to understand how Earth can be so old and still have a hot interior?

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asked by jjk
  1. Yes

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    posted by Corey

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