Causes of an Earthquake

Q. In which of the following layers of the earth do the earthquake originate?

1. Mantle
2. Outer core
3. Inner core
4. Crust

Q. An earthquake is caused by a disturbance deep inside the earth's crust.

1. True
2. False

Q. Which of the following events can cause an earthquake?

1. Tsunami
2. A big meteorite hitting the Earth.
3. Volcanic eruption
4. Thunderstorm

Q.

Question 11 (iii)

State whether the following statements are True/False.
Tremors on the earth can also be caused by the eruption of a volcano.

Q.

Question 6

The earth's plate responsible for causing an earthquake is
(a) the crust of the earth
(b) the mantle of the earth
(c) the inner core of the earth
(d) the outer core of the earth

Q. The layer of the earth where earthquakes occur is the:

1. Crust
2. Mantle
3. Outer core
4. Inner core

Q. The place where the earthquake occurs is the
(a) centre.
(b) epicentre.
(c) focus.
(d) origin.

Q.

Which of the following is not a cause for earthquakes?

1. Volcanic eruption

2. Meteor hitting the earth

3. Underground nuclear explosion

4. Tsunami

Q. Identify the reason(s) that cause tremors deep inside Earth resulting in an earthquake.

1. Volcanic eruptions
2. Thunderstorm
3. Underground nuclear explosion
4. Movement of Earth's plates

Q. The layer of the earth where earthquakes occur is the:

1. Crust
2. Mantle
3. Inner core
4. Outer core

Q. Assertion(A): Earthquake occurs due to the movement of tectonic plates.
Reason(R): When tectonic plates compress each other, pressure is built up.

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. Identify the reason(s) that cause tremors deep inside Earth resulting in an earthquake.

1. Volcanic eruptions
2. Thunderstorm
3. Underground nuclear explosion
4. Movement of Earth's plates

Q. Earthquakes can be caused by underground explosions.

1. False
2. True

Q. An earthquake is caused by
(a) shaking of the earth's surface.
(b) strain building up in the tectonic plates.
(c) plates slipping along the fault lines.
(d) all of the above.