Answer: A. Most radiation reaching Earth from space is blocked by the atmosphere. Therefore, some telescopes must be placed above the atmosphere.
Explanation: Astronomers have a huge problem detecting radiation from space because the Earth's atmosphere blocks most of it and stops it from reaching the surface.
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Answer:
it depends upon the material used to make the brick
A theory does not change into a scientific law with the accumulation of new or better evidence. A theory will always remain a theory
Answer:
the 2 means there are 2 al and the 3 means there are 3 o
Explanation:
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Symbol: Hg
Made of hydrargyrum
Atomic number: 80
Atomic weight: 200.59
Poor conductor if heat and an ok conductor for electricity. Primarily used for many industrial applications and its salts have been employed therapeutically as purgatives, antisyphilitics, disinfectants, and astringents.
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