Metro PCS's Best Toll-Free/800 Customer Phone Number This is Metro PCS's best phone number, the real-time current wait on hold and tools for skipping right through those phone lines to get right to a Metro PCS agent.
Making the world better, one answer at a time. Thin air is caused by low oxygen pressure at high altitudes. The lack of oxygen makes the air less dense. Thin air is caused by low oxygen pressure at high altitudes. The lack of oxygen makes the air less dense.
The reason is the lower atmospheric pressure. due to a thinner blanket of air above. At sea level, the air presses on a square. inch of surface with 14.7 pounds pressure; at 5,000 feet with 12.3 pounds. pressure; and at 10,000 feet with only 10.2 pounds pressure -- a decrease. of about 1/2 pound per 1,000 feet.