The centre of the nucleus is an atom
Answer:
An ATOM!, is the smallest unit of matter that has characteristic properties of its element. Explanation: An atom a major part of the matter. (Everything in the world (except energy) is made of a material, and, so, everything in the universe is composed of atoms.
answer:
it took 17,000 years for CO2 to go from 200 to 300 ppm.
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The Uvula
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Answer:
The traits that all the solar system models do share is that they have <u>a circular orbit around the sun.</u>
