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The freezing and boiling point of a substance changes as the air pressure around it changes. for example, at a lower air pressure (higher altitude) it is easier for water molecules to escape from liquid into the air. in a high altitude city such as denver, colorado compared to a sea-level city such as houston, texas, water
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Physics, 22.06.2019 13:50
Observations show that interstellar clouds can have almost any shape and
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If two parallel light rays hit a mirror, they will not be parallel to each other after they reflect.
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What are the interger...
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