Volcano - Summative Exam

1. A natural opening in the surface of the Earth where molten rocks,

hot gases, smoke, and ash are ejected

External parts of volcanoes are: __________, the highest point; __________ the side;

and __________ the lower part of the volcano.

Volcanoes are classified as _________ or __________ based on their records of

eruption.

According to structure of volcanoes are classified as __________, __________,

and __________.

Mayon Volcano, Taal Volcano, Mount Kanlaon, Bulusan Volcano and Mount

Pinatubo are examples of _______ volcanoes because they erupted just recently

and more frequently than others.

What is the term used to represent the opening of the volcano where magma

comes out?

• magma chamber

• crater

• base

• vent

What part of the volcano serves as the region under the surface of the Earth where

hot molten magma is collected?

• lava flow

• main vent

• base

• magma chamber

Which of the following CORRECTLY describes the main vent of the volcano?

• It is the part where magma is stored.

•  It is the central tube-like structure of the volcano.

•  It is the smaller outlet through which magma is ejected.

• It is the channel through which magma travels to the surface of the

  Earth.

Which type of volcanoes have broad bases and steep slopes and are formed by

alternating layers of lava flows, volcanic ash, cinders, blocks and pyroclastic

materials?

•  cinder cones

• composite volcanoes

• lava domes

• shield volcanoes

What is the basis of classifying volcanoes as active or inactive?

• size of the base

• shape of the cone

• age of the volcano

• records of eruption