An object that travels around another object in space, is called a Satellite.
Answer:
Oxygen is an element that can be a solid, liquid or gas depending on its temperature and pressure. In the atmosphere it is found as a gas, more specifically, a diatomic gas. This means that two oxygen atoms are connected together in a covalent double bond.
+3 ....>>>>>>>>..... i have added 20 characters to properly explain my answer
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Longitud wave something like that.