When we say Mt. Everest is 8850m tall, how do we know what sea level would be beneath the mountain? 

Direct download: What_is_Sea_Level.mp4
Category:general -- posted at: 5:22pm EDT



-->

Syndication

Categories

Archives

May 2019
S M T W T F S
     
      1 2 3 4
5 6 7 8 9 10 11
12 13 14 15 16 17 18
19 20 21 22 23 24 25
26 27 28 29 30 31