The best reason I can think of for why we believe that air is a mixture is that freezing air slowly yields different liquids at different temperatures. Liquid nitrogen has a different boiling point than liquid oxygen. They also freeze at different temperatures.
An inguinal hernia is a protrusion of abdominal-cavity contents through the inguinal canal. Symptoms are present in about 66% of affected people. This may include pain or discomfort especially with coughing, exercise, or bowel movements. Often it gets worse throughout the day and improves when lying down.
Medical MCQ*. HERNIA REPAIR. The inguinal canal is an oblique space measuring 4 cm in length that lies above the medial half of the inguinal ligament. At its medial end there is a triangular opening, called the external inguinal ring, that lies above and lateral to the pubic crest.