PHYSCI

Question 1

is a mass of magma that flows down the slope of the volcano at a rate of 3 kilometers per day (slightly high viscosity) or 45 kilometers per hour (low viscosity)

Answer 1

Lava flow

Question 2

Is currently erupting or is showing signs of volcanic eruption. It should have also erupted within the last 600 years

Answer 2

Active Volcano

Question 3

Is one which has erupted and then entered a long period of inactivity.

Answer 3

Potentially Active Volcano

Question 4

are rocks that are released into the air by an erupting volcano

Answer 4

Ballistic projectiles.

Question 5

is the place where the two plates converge and the volcano is formed (DOST-PHIVOLCS, n.d.)

Answer 5

subduction zone

Question 6

refers to hot dry masses of fragmented volcanic materials that move along the slope and in contact with ground surface at a speed greater than 60 kilometers per hour.

Answer 6

Pyroclastic flow

Question 7

Is one that has not shown any sign of activity for a long period. It has no record of volcanic eruption in the past thousand years

Answer 7

INACTIVE VOLCANO

Question 8

is flowing mixture of volcanic debris and water.

Answer 8

Lahar

Question 9

takes place when two plate converge.

Answer 9

Subduction

Question 10

Is one that has not shown any sign of activity for a long period

Answer 10

Inactive Volcano

Question 11

are turbulent low-concentration density currents of gases, rock debris and in some cases, water, that move above the ground surface at high velocities

Answer 11

Pyroclastic surges

Question 12

is one of the basic component of magma or lava.

Answer 12

Volcanic gas

Question 13

are showers of fine coarse-grained volcanic materials and other airborne products of a volcanic eruption.

Answer 13

are showers of fine coarse-grained volcanic materials and other airborne products of a volcanic eruption.

Question 14

PHIVOLCS

Answer 14

Philippine Institute of Volcanology and Seismology

Question 15

An example of an inactive volcano

Answer 15

Mt. Cabalian

Question 16

Is the downward movement of soil, rocks, and earth materials along a slope.

Answer 16

Landslide

Question 17

is the slow to rapid downslope movement of unconsolidated soil and rock debris.

Answer 17

Rock and debris slide

Question 18

is the mass movement characterized by a flowing mass of mud along the flank of a volcano.

Answer 18

Mudflow

Question 19

is the downslope flowage of soft and unconsolidated materials.

Answer 19

Slump

Question 20

is a slow or gradual movement of soil.

Answer 20

Creep

Question 21

is the free falling movement of massive rocks from a cliff or steep slopes.

Answer 21

Rock fall

Question 22

is the rapid flowage of debris and other rock material.

Answer 22

Debris flow

Question 23

Are geologic formations that are formed by erosion of bedrocks composed of soft material and rocks. They can be also be formed due to the lack of water that supports thin earth surface and human activities that change the form of the land surface.

Answer 23

SINKHOLE