Introduction to volcanoes and their types

Question 1

Where did the name Volcano come from?

Answer 1

Vulcano, named after the roman god of fire, Vulcan

Question 2

how many active volcanoes are in the world right now?

Answer 2

859 active volcanoes

Question 3

How many % of active volcanoes are in the pacific ring of fire

Answer 3

75%

Question 4

How many active volcanoes erupt atleast once yearly

Answer 4

50-60 volcanoes

Question 5

How many volcanoes erupt at any given time

Answer 5

20

Question 6

Volcanoes are categorized by? (3)

Answer 6

Shape
Materials they are made of
The way they erupt

Question 7

Also called strato volcanotes

Answer 7

Composite volcanoes

Question 8

Formed by attending layers of rock and lava fragments

Answer 8

Composite volcanoes

Question 9

Are huge in size, built by many layers of runny lava

Answer 9

Shield volcano

Question 10

A steep conical hill formed above a vent, among the most common volcanic landforms

Answer 10

Cinder cone

Question 11

Cinder cones are chiefly formed by _________

Answer 11

Strombolian

Question 12

Cinder cone are built from lava fragments called _________

Answer 12

Cinders

Question 13

Also called lava dome

Answer 13

Volcanic dome

Question 14

Is a rounded steep sided mound

Answer 14

Volcanic dome

Question 15

Described to produce the largest eruptions on earth

Answer 15

Supervolcanoes

Question 16

What is VEI

Answer 16

Volcanic explosivity index

Question 17

Created when magma erupts underwater

Answer 17

Submarine volcanoes

Question 18

Submarine volcanoes in the shallow water can eject basaltic magma and the lava formed is known as _______

Answer 18

Pillow lava

Question 19

Also called glaciovolcano

Answer 19

Subglacial volcano

Question 20

Subglacial eruptions often causes _________ or _______

Answer 20

Jokulhlaups or great ploods of water

Question 21

Volcanoes are classified as (3)

Answer 21

Active, dormant, extinct

Question 22

7 types of volcanoes

Answer 22

Composite volcanoes
Shield volcanoes
Cinder cone
Volcanic dome
Super volcanoes
Submarine volcanoes
Subglacial volcano

Question 23

Created by eruptions beneath the surface of a glacier or sheets

Answer 23

Subglacial volcano