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Cirrus cloud

Cirrus cloud is a type of cloud that is composed of ice crystals and shaped in the form of hairlike filaments. It is formed at an altitude of approximately 29,000 feet.

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Urethra

... over urination. In the human female, the urethra is about 1-1.5 inches (25-38 mm) long and opens in the vulva between the clitoris and the vaginal opening. In ...