Science 10. Compare the methods of measuring distances in space. Include distances to the Moon,
Jupiter, the Sun, other stars, and galaxies from the Earth. Include a description of the units used
to measure these distances.

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when atoms of different types of elements join together, they make molecules called compounds. water consists of compound molecules made up of 2 hydrogen atoms and 1 oxygen atom. this is why it's called h2o. water will always have 2 times the number of hydrogen atoms as oxygen atoms.

what in the weirdo : o