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.
Local heating of air, over a desert or a city, causes air to expand and become lower in pressure. Higher pressure air tries to fill in the gap but, again because of the coriolis effect, the air moves inward in a circular path, counter clockwise in the northern hemisphere and clockwise in the southern hemisphere.