Documentary The Most Spectacular Views On Earth Part 7
The Earth's surface is very young. In the relatively short (by astronomical standards) period of 500,000,000 years or so erosion and tectonic processes destroy and recreate most of the Earth's surface and thereby eliminate almost all traces of earlier geologic surface history (such as impact craters). Thus the very early history of the Earth has mostly been erased. The Earth is 4.5 to 4.6 billion years old, but the oldest known rocks are about 4 billion years old and rocks older than 3 billion years are rare. The oldest fossils of living organisms are less than 3.9 billion years old. There is no record of the critical period when life was first getting started
71 Percent of the Earth's surface is covered with water. Earth is the only planet on which water can exist in liquid form on the surface (though there may be liquid ethane or methane on Titan's surface and liquid water beneath the surface of Europa). Liquid water is, of course, essential for life as we know it. The heat capacity of the oceans is also very important in keeping the Earth's temperature relatively stable. Liquid water is also responsible for most of the erosion and weathering of the Earth's continents, a process unique in the solar system today (though it may have occurred on Mars in the past).
-
3:17
Galaxian
3 years agoThe Incredible Earth-Strange Facts
25 -
1:05
Outer Space
2 months agoHow many Earths can fit into each planet
2733 -
4:59
InfiniteAI
1 year agoThe History of Earth
6 -
2:46
yokitzy13
1 year agoHow Old Is The Earth?
72 -
0:39
WhatsNextVids
1 month ago $0.10 earnedIt Used to Rain on The Moon When it Had an Atmosphere 🌙 #shorts #tiktok #space #Apollo #NASA
59 -
1:35
CreationNtheUniverse
7 months agoWhen The Earth Entire Surface Was Covered In Water A Billion Years Ago
30 -
0:28
Quiztastic
1 year agoRevealing the OLDEST VOLCANO IN THE WORLD: a fascinating journey through our planet! #shorts
3 -
1:31:28
TheWizzard2203
1 year agoNational Geographic Earth Making of a Planet
10 -
2:40
Atomic Analyzer
9 months agoExploring Our Amazing Planet : Earth
2 -
17:37
rumble viral
6 months agoTHE MOST HORRIFYING PLACES IN THE OCEAN 11,034 m BELOW SEA LEVEL
51