Plate Tectonic Theory

Q. What are the tectonic plates?

1. Margin of oceans
2. Irregularly shaped lithospheric plates
3. Margin of continents
4. Meeting points of two oceans

Q. The ___________ contains the crust and the uppermost part of the mantle.

1. troposphere
2. mesosphere
3. thermosphere
4. lithosphere

Q. Assertion(A): Convection currents occur due to the movement in fluid magma.
Reason(R): It occurs due to the difference in temperature between the mantle and solid core.

1. Both A and R are true and R is the correct explanation of A
2. Both A and R are true but R is not the correct explanation of A
3. A is true but R is false
4. A is false but R is true

Q. Which of the following is/are the major tectonic plates in the world?

1. Antarctic plate
2. Pacific plate
3. African plate
4. Arabian plate

Q. is the layer of the Earth's mantle that lies beneath the lithosphere.

1. Asthenosphere
2. Stratosphere
3. Lower mantle

Q. Match the following plate boundaries with the movement of lithospheric plates that cause their formation.

1. Moving apart
2. Sliding
3. Colliding

Q. Assertion [A]: Convection currents leads to the movement of fluids from one place to another in a cyclical manner.

Reason [R]: The cyclical movement of fluids is a result of temperature and density differences of the fluid in the Earth's mantle and core.

Read the following statements about convection currents and select the option that is true.

1. A is true but R is false
2. Both A and R are true and R is the correct explanation of A
3. Both A and R are true but R is the incorrect explanation of A
4. Both A and R is false

Q. The rise of warm air and fall of cool air in order to fill the space forms a​​​​​​​.

1. conduction current
2. convection current
3. radiation

Q. Explain the "Theory of Plate Tectonics".

Q. The _____________ is the layer beneath the lithospheric mantle lying about 100 kilometers to 410 kilometers beneath Earth’s surface.

1. troposphere
2. asthenosphere
3. mesosphere
4. thermosphere

Q. Which of the following is/are the major tectonic plates in the world?

1. Antarctic plate
2. Pacific plate
3. African plate
4. Arabian plate

Q. I can be described as the outermost layer of a terrestrial planet. I occupy just 1% of the earth's landmass and yet contains all the life in the planet. I am made up of solid rocks and minerals. Who am I?

1. Magma
2. Mantle
3. Core
4. Crust

Q. What is plate tectonic movement? What are its three types?

Q. Which of the following plates collided to form the Himalayas?

1. African plate
2. Arabian plate
3. Indian plate
4. Eurasian plate

Q. The ___________ contains the crust and the uppermost part of the mantle.

1. troposphere
2. lithosphere
3. mesosphere
4. thermosphere

Q. The process through which one plate goes underneath the other is called __________.

1. subduction
2. induction
3. reduction
4. deduction

Q. The _____________ is the layer beneath the lithospheric mantle.

1. troposphere
2. thermosphere
3. asthenosphere
4. mesosphere

Q. Assertion(A): Convection currents occur due to the movement in fluid magma.
Reason(R): It occurs due to the difference in temperature between the mantle and solid core.

1. Both A and R are true but R is not the correct explanation of A
2. A is true but R is false
3. A is false but R is true
4. Both A and R are true and R is the correct explanation of A

Q. I can be described as the outermost layer of a terrestrial planet. I occupy just 1% of the earth's landmass and yet contains all the life in the planet. I am made up of solid rocks and minerals. Who am I?

1. Magma
2. Mantle
3. Core
4. Crust

Q. is the layer of the Earth's mantle that lies beneath the lithosphere.

1. Asthenosphere
2. Stratosphere
3. Lower mantle

Q. Match the following plate boundaries with the movement of lithospheric plates that cause their formation.

1. Moving apart
2. Sliding
3. Colliding

Q. The rise of warm air and fall of cool air in order to fill the space forms a​​​​​​​.

1. conduction current
2. convection current
3. radiation

Q. When two plates come together, the boundary created is called a __________ boundary.

1. convergent
2. divergent
3. concurrent
4. contrasting