1 is d.only the planets were formed by chunks of debris
2 is c.the mantle
Absolute age is the answer;)
Answer: Synchronous Rotation or Tidal Locking
Explanation: Only one side of the moon is visible to earth because the moon rotates on its axis at the same rate that the moon orbits the earth.
The answer is: [C]: Alaska, Texas, Montana, and Idaho .
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Answer:
True
Explanation:
An emission spectrum is the<em> unique pattern of lines formed by a chemical compound when the radiation emitted after a transition from a higher to lower energy state, </em>passes through a prism separating it into the different frequencies of light forming a unique image.
Considering this information we know the answer is true because <em>Helium and hydrogen are different elements and therefore they have different emission spectrums.</em>
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