VOLCANOES

Question 1

refers to mountain or hill, typically conical, having a crater
or vent in which lava, rock fragments, hot vapor, and gas are or have been erupted
from the earth’s crust

Answer 1

volcano

Question 2

the highest point or the apex of the volcano.

Answer 2

SUMMIT

Question 3

is lower outer part of the volcano.

Answer 3

BASE

Question 4

are the sides or flanks of a volcano that radiate from the main or
central vent

Answer 4

SLOPE

Question 5

region beneath the vent of a volcano where molten
rock or magma is deposited or stored before eruption.

Answer 5

MAGMA CHAMBER

Question 6

the main opening or outlet on the surface of a volcano that
emits lava, gases, ash or other volcanic materials

Answer 6

MAIN VENT

Question 7

an underground central tube-like or pipe-like structure of a
volcano that connects the magma chamber to the crater through which
the magma travels.

Answer 7

CONDUIT PIPE

Question 8

a smaller outlet through which magma escapes

Answer 8

SIDE VENT

Question 9

the mouth of the volcano which is a funnel-shaped or bowlshaped
hollow at the top of the vent from where magma, ash and gas
comes out.

Answer 9

CRATER

Question 10

a molten rock which is given off onto the surface of the Earth
when a volcano erupts.

Answer 10

LAVA

Question 11

mixtures of rock, minerals, glass particles and
gases expelled or pushed out of the volcano during volcanic eruption.

Answer 11

ASH AND GAS CLOUD

Question 12

have a steep slope, wide
crater and are the most abundant of the three
major volcano types

Answer 12

CINDER CONE

Question 13

example of cinder cone volcano

Answer 13

Taal Volcano in Batangas,
Smith Volcano found in Babuyan Group of
Islands, Mount Mayabobo found in Quezon
Province, and Mount Musuan

Question 14

are large, typically steepsided,
symmetrical cones of large dimension
formed from alternating layers of lava flows,
volcanic ash, cinders, blocks, and
pyroclastic materials. One important
feature of a composite

Answer 14

COMPOSITE VOLCANO OR STRATO VOLCANO

Question 15

example of composite volcano

Answer 15

Mount Mayon in Albay,
Mount Arayat in Pampanga, Mount Kanlaon
in Negros Island, and Mount Apo in Davao Region. An example of these outside the
Philippines are Mount Rainier in Washington, USA, and Mount Fuji in Japan.

Question 16

are large, broad volcanoes
that look similar to shields from above – hence
the name.

Answer 16

SHIELD VOLCANO

Question 17

example of shield volcano

Answer 17

MAUNA LUA

Question 18

, on the other hand, are those that have not erupted for
the last 10,000 years and is not expected to erupt again in a comparable time
scale of the future

Answer 18

IN ACTIVE VOLCANO

Question 19

are those volcanoes that have had at least one eruption
during the past 10,000 years.

Answer 19

ACTIVE VOLCANO

Question 20

are those that have no records of volcanic
activity but are morphologically young-looking.

Answer 20

POTENTIALLY ACTIVE VOLCANO

Question 21

is a stream-driven eruption as the hot rocks
come in contact with water. It is short lived, characterized by ash columns
but may be a beginning of a larger eruption

Answer 21

PHREATIC

Question 22

is a violent eruption due to the contact between water
and magma. As a result, a large column of very fine ash and high-speed
and sideway emission of pyroclastic materials called base surges are
observed.

Answer 22

PHREATOMAGMATIC

Question 23

a periodic, weak to violent eruption characterized by fountain
lava, just like the Irazu Volcano in Costa Rica

Answer 23

STROMBOLIAN

Question 24

is characterized by tall eruption columns that reach up to 20
km high with pyroclastic flow and ash fall tephra like that of Paricutin
Volcano in Mexico

Answer 24

VULCANIAN

Question 25

is excessively explosive type of eruption of gas and pyroclastic
materials, like in Pinatubo Volcano in Zambales.

Answer 25

PLINIAN