Tectonic Plates

Q.

What is Moho discontinuity?

Q.

The plates of the outermost layer of the earth are always in continuous motion.

1. True
2. False

Q. How many major tectonic plates are present on Earth?

1. Five
2. Seven
3. Four
4. Six

Q. Which of the following is not found in the 'lithosphere'?

1. Magma
2. Upper mantle
3. Tectonic plates
4. Earth's crust

Q. Arrange the following events in the correct order of the process involved in the movement of tectonic plates. 1) The magma sinks back into the earth in circular motion. 2) The magma pushes the plates on the surface and is cooled down due to the temperature gradient. 3) The magma continues to follow the convection type of heat transfer 4) The hot magma rises to the upper surface of the asthenosphere.

1. 4, 2, 1, 3
2. 3, 4, 1, 2
3. 3, 2, 1, 4
4. 4, 1, 2, 3

Q. Which of these is not a major tectonic plate of the Earth?

1. Indo-Australian plate
2. African plate
3. Pacific plate
4. Arctic plate

Q. A is a type of lowland between two landmasses that is formed because of the movement of tectonic plates.

1. desert
2. rift valley
3. plain
4. mountain valley

Q. What are Lithospheric plates? How do they move?

Q. Which process helps in the formation of rift valley?

1. Faulting
2. Seismism
3. Folding
4. Volcanism

Q. How many major tectonic plates does the earth's crust have?

1. Eight
2. Three
3. Seven
4. Four

Q.

Why is it difficult to study the formation of earth and its structure?

Q. What is the name of the mountain chain that crosses northen Pakistan, India, Nepal and Bhutan?

1. The Deccans
2. The Ghats
3. The Sahara
4. The Himalayas