Clouds form when water vapor in the air condenses to form liquid water or ice crystals. a. true b. false

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I think it's true

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Six base units were recommended: the metre, kilogram,second, ampere, degree kelvin (later renamed kelvin), and candela. in 1960, the 11th  cgpm  named the system the international system of units, abbreviated si from the french name, le système international  d'unités.