1 00:00:00,690 --> 00:00:21,280 Hey everyone guess where I am well don't think so hard I am in space do you see 2 00:00:21,280 --> 00:00:29,620 that blue ball well that's where you are that's the earth but hey what are these 3 00:00:29,620 --> 00:00:36,219 they are the layers of atmosphere so let's learn about the layers of 4 00:00:36,219 --> 00:00:43,820 atmosphere today zoom in this is the troposphere this layer is where the 5 00:00:43,820 --> 00:00:49,780 weather occurs this is the lowest atmospheric layer and begins at the 6 00:00:49,780 --> 00:00:55,939 surface of the earth and extends out to about four to ten miles the temperature 7 00:00:55,939 --> 00:01:02,320 the troposphere decreases with increase in altitude just so that you know 8 00:01:02,320 --> 00:01:08,180 altitude is the height of an object or point in relation to the ground level 9 00:01:08,180 --> 00:01:16,260 now we are in the stratosphere second lowest layer of Earth's atmosphere here 10 00:01:16,260 --> 00:01:22,400 the temperature rises with the rise in altitude you will also find the ozone 11 00:01:22,400 --> 00:01:32,640 layer here which helps absorb harmful UV rays from the Sun this is the layer 12 00:01:32,640 --> 00:01:37,859 where you will find aeroplanes flying around as the stratosphere is free of 13 00:01:37,859 --> 00:01:43,920 all weather disturbances the stratosphere extends to about 30 to 35 14 00:01:43,920 --> 00:01:51,439 miles above the Earth's surface this is the mesosphere where most meteors burn 15 00:01:51,439 --> 00:01:57,439 Turn upon entry, the mesosphere stretches up till 50 miles from the earth's surface. 16 00:01:58,439 --> 00:02:02,439 The thermosphere is next and the air is very thin here. 17 00:02:03,439 --> 00:02:06,439 Temperatures get extremely hot in the thermosphere. 18 00:02:07,439 --> 00:02:10,439 It extends up to 400 miles from the earth's surface. 19 00:02:11,439 --> 00:02:15,439 The lower part of this layer contains the ionosphere. 20 00:02:16,439 --> 00:02:18,439 Many atoms are ionized in this layer. 21 00:02:18,439 --> 00:02:21,439 And you will also find electrical charge here. 22 00:02:25,810 --> 00:02:28,810 This is the last layer and the air is quite thin here. 23 00:02:29,810 --> 00:02:31,810 Yes, it is the exosphere. 24 00:02:32,810 --> 00:02:37,810 It goes all the way up to 6200 miles from the earth's surface. 25 00:02:38,810 --> 00:02:40,810 Trivia Time! 26 00:02:43,379 --> 00:02:44,379 Did you know? 27 00:02:45,379 --> 00:02:49,379 Troposphere contains more than 75% of atmosphere's mass. 28 00:02:49,379 --> 00:03:00,099 mass and the ions in the ionosphere help to transmit radio waves it's getting a 29 00:03:00,099 --> 00:03:06,360 bit spooky here I think it's time for me to get back to earth so this is me 30 00:03:06,360 --> 00:03:13,800 zooming out tune in next time for more fun facts