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Geography Class 11 Chapter 1 Earth Movements Maharashtra State Board std 11th 1st lesson #mpsc
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Intro 00:00
Geographical explanation 02:09
Hills, mountains, plateaus, valleys, etc. are the landforms we see on the earth’s surface. They have been developed and shaped by the internal and external forces. The internal processes are classified into slow movements and sudden movements. The earth’s surface changes slowly but continuously. These changes occur due to forces such as tension and compression. The internal processes cannot be observed. However, their effects may be seen on the surface. Formation of mountains and distribution of continents are related to slow movements. There are also sudden processes that operate within the crustal part. Their effects can be noticed on the surface within a few seconds or hours. Earthquake and volcanoes are sudden movements.
Evidences of Earth Movements 12:03
: The landforms are never permanent in nature. They tend to change. There are evidences to indicate that the earth movements have taken place in the past and have affected the surface of the Earth. Some of them are:
a) After the Great Tsunami of 2004, the coast around Sumatra island rose by few centimetres.
b) The formation of three ranges in the Himalayas : the Siwaliks, the Middle Himalayas and the Greater Himalayas.
c) There is a report that says that due to volcanic eruption near Iceland an island appeared above the sea surface in November 1963. This event was witnessed by some sailors who were passing by the area.
d) Some islands such as the Megapode Island were reported to have been lost after the tsunami.
e) To the south east coast of Mumbai, near Mazgaon Dockyard, there are evidences of forest-covered land getting drowned. Even today, trunks of those trees can be found at some depth
GooglePay ( UPI ID)
Even a Contribution of rs 20 Will be a huge Support From Your Side .
Join this channel to get access to perks:
Join Me On Telegram
#billioneducation
#be
#class11
#earthmovements
#maharashtraboard
#chapter1
Intro 00:00
Geographical explanation 02:09
Hills, mountains, plateaus, valleys, etc. are the landforms we see on the earth’s surface. They have been developed and shaped by the internal and external forces. The internal processes are classified into slow movements and sudden movements. The earth’s surface changes slowly but continuously. These changes occur due to forces such as tension and compression. The internal processes cannot be observed. However, their effects may be seen on the surface. Formation of mountains and distribution of continents are related to slow movements. There are also sudden processes that operate within the crustal part. Their effects can be noticed on the surface within a few seconds or hours. Earthquake and volcanoes are sudden movements.
Evidences of Earth Movements 12:03
: The landforms are never permanent in nature. They tend to change. There are evidences to indicate that the earth movements have taken place in the past and have affected the surface of the Earth. Some of them are:
a) After the Great Tsunami of 2004, the coast around Sumatra island rose by few centimetres.
b) The formation of three ranges in the Himalayas : the Siwaliks, the Middle Himalayas and the Greater Himalayas.
c) There is a report that says that due to volcanic eruption near Iceland an island appeared above the sea surface in November 1963. This event was witnessed by some sailors who were passing by the area.
d) Some islands such as the Megapode Island were reported to have been lost after the tsunami.
e) To the south east coast of Mumbai, near Mazgaon Dockyard, there are evidences of forest-covered land getting drowned. Even today, trunks of those trees can be found at some depth
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