Nife is made up of ________.

The magnitude of an earthquake is measured by ________.

Lava cones are ________.

_____ belt is known as the “Ring of Fire”.

In India, the Himalayan region and the ________ valley are prone to earthquakes.

The core is separated from the mantle by a boundary called ______.

Magma rises to the surface and spreads over a vast area is known as ______.

Seismology is the study of ________.

The scientific study of volcanoes is called _____________

Lava flow is affected by _____________

SIAL and SIMA

Active volcano and dormant volcano

crust, magma, core, mantle 

Uttar Kashi, Chamoli, Koyna, Krakatoa

Stromboli, Helens, Hawaii, Fujiyama

Mt. Popa, Mt. Fujiyama, Mt. Kilimanjaro, Mt. Kenya.

Assertion (A): The Pacific Ocean includes two thirds of the world’s volcanoes.
Reason (R): The boundary along the Eastern and Western coast areas of the Pacific Ocean is known as the Pacific Ring of Fire.
a. A and R are correct and R explains A
b. A and R are correct but A does not explain R
c. A is incorrect but R is correct
d. Both A and R are incorrect

Statement 1: Many volcanoes of Mexico and Central America are cinder - cone volcanoes.
Statement 2: Shield volcano is also called strato volcano.
(a) 1 is true, 2 is wrong.
(b) 1 is wrong, 2 is true.
(c) Both the Statements are wrong.
(d) Both the Statements are wrong.

Name the outer most layer of the earth.

Give an example of extinct volcano.

What is mantle?

Define Earthquake.

What is a volcano?

Write about the effects of an earthquake?

Are Volcones Destructive (or) Constructive?