Fill in the blacks
que1) The tectonic plates keeps on........... due to .........
2) The movement of tectonic plates are called..........
3) There are. 7 ...............
4) The lithosphere comprises of .............
5) Wenge's theory was not .............. and come up with ..............
6) continent for in to each other and look like .........
7) Took up the spaces between continents .............
8) the pangea split and ............
...........
9) ...............the German scientists who proposed continent drift theory.
10) pangea means...............
Answers
Explanation:
1.The main driving force of plate tectonics is gravity. If a plate with oceanic lithosphere meets another plate, the dense oceanic lithosphere dives beneath the other plate and sinks into the mantle. This process is called subduction.
2.plate motion
4.The lithosphere is the rocky outer part of the Earth. It is made up of the brittle crust and the top part of the upper mantle. The lithosphere is the coolest and most rigid part of the Earth
6.different
8.About 200 million years ago Pangaea broke into two new continents Laurasia and Gondwanaland. Laurasia was made of the present day continents of North America (Greenland), Europe, and Asia. Gondwanaland was made of the present day continents of Antarctica, Australia, South America.
9.In the mid-20th century, the theory of continental drift was referred to as the "Taylor-Wegener hypothesis", although this terminology eventually fell out of common use. Alfred Wegener first presented his hypothesis to the German Geological Society on 6 January 1912.
10. all the Earth