Chaptor 9.1

Question 1

How do earth quakes occur?

Answer 1

Earth’s surface consists of huge pieces of solid rocks called plates. When these plates slide over or against each other earth quakes occur.

Question 2

What is formed when rock melts deep inside the Earth?

Answer 2

Magma

Magma is molten rock located beneath the Earth’s surface.

Question 3

What occurs during a volcanic eruption?

Answer 3

Magma is pushed out of the Earth’s surface with great force

This process can lead to explosive eruptions and the release of volcanic materials.

Question 4

What types of energy are released during a volcanic eruption?

Answer 4

Heat, light, and kinetic energy

These energy forms contribute to the various effects of a volcanic eruption.

Question 5

What natural events can trigger a tsunami?

Answer 5

Earthquakes and volcanic eruptions.

Question 6

What are the powerful waves caused by underwater disruptions called?

Answer 6

Tsunami.

Question 7

What is the maximum height that tsunami waves can reach?

Answer 7

Up to 40 metres.

Question 8

Fill in the blank: Tsunamis can occur due to _______ and volcanic eruptions.

Answer 8

[earthquakes]