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Atom: The basic unit of a chemical element. An atom consists of a dense nucleus containing positively charged protons and uncharged neutrons. A cloud of negatively…

Paleontologists have discovered the fossil of a deep-snouted tyrannosaur dinosaur. Asiatyrannus shui Southeast China. Fossil remains Asiatyrannus shuiThe first deep-snouted tyrannosaur discovered in Ganzhou, southeastern China.…