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.
When water vapor-laden air cools to a low enough temperature, it condenses, forming liquid water. This is more likely to happen when ducts located in unconditioned spaces, like attics, are not adequately insulated, and the air in them is not circulated on a regular basis.