The lithosphere is the rigid outer layer of the Earth, comprising the crust and uppermost part of the mantle. It is about 100 kilometers thick on average and is divided into several large plates that move slowly over the Earth’s surface. The lithosphere is composed of solid rock and is relatively cold and brittle compared to the underlying asthenosphere, which is partially molten and more ductile. The lithosphere plays an important role in the Earth’s geology and tectonic activity, as it is the site of most earthquakes, volcanic eruptions, and mountain-building processes. It also provides the foundation for the Earth’s continents and ocean basins.
Here are some MCQs on Lithosphere :
1. Which layer of the Earth is the lithosphere?
a) Outer layer
b) Inner layer
c) Middle layer
d) None of the above
2. What is the name of the process that causes rocks to break down into smaller pieces?
a) Erosion
b) Deposition
c) Weathering
d) Sedimentation
3. What type of rock is formed when molten rock cools and solidifies?
a) Igneous rock
b) Sedimentary rock
c) Metamorphic rock
d) None of the above
4. What type of rock is formed when layers of sediment are compacted and cemented together?
a) Igneous rock
b) Sedimentary rock
c) Metamorphic rock
d) None of the above
5. What is the name of the process that moves sediment from one place to another?
a) Erosion
b) Deposition
c) Weathering
d) Sedimentation
