Answer:
A telescope
astronomers use special telescopes to study x ray and gamma ray emmisons
These are trade alliances. When companies between these countries trade they have to worry less about customs and importing and things like that and crossing the border is much easier because the goal is to boost the economy of all signatory parties.<span />
Answer:
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Explanation:
Answer:
Blue light
Explanation:
The molecules in the Earth's atmosphere help to scatter shortwave light such as that of blue and violet light. Because blue light is represented as such short wavelengths, it can easily travel and move around.