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2007-11-21 01:54:52 · 5 answers · asked by Anonymous in Science & Mathematics Earth Sciences & Geology

5 answers

hydrogen because its mass number is 1

2007-11-21 01:58:01 · answer #1 · answered by **PiNoY YFC** 7 · 0 0

The air over Mt Everest, is the lightest in the world.

2007-11-22 13:05:36 · answer #2 · answered by Arasan 7 · 0 0

hydrogen is the lightest air molecule, but patty's dad the air at higher elevations doesnt weigh less it is just less of it so it appears to weigh less then other air.

2007-11-21 13:30:36 · answer #3 · answered by vucker4 2 · 0 0

The air at the tops of mountains (or any high altitude) is thinnest and lightest.

2007-11-21 10:02:48 · answer #4 · answered by Be Here Now. 4 · 0 0

Hydrogen.

2007-11-21 10:02:30 · answer #5 · answered by Anonymous · 1 0

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