Plate Tectonics and Volcano

Question 1

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

Answer 1

Volcano

Question 2

A long, narrow, deep depression
in the ocean floor, typically one
running parallel to a plate
boundary and marking a
subduction zone.

Answer 2

Trench

Question 3

Plate under landmasses

Answer 3

Continental Plates

Question 4

Plate under the ocean

Answer 4

Oceanic Plates

Question 5

A path along the Pacific Ocean
characterized by active volcanoes and frequent earthquakes

Answer 5

Ring of Fire

Question 6

How are volcanoes distributed?

Answer 6

Most are concentrated on the edges of continents

Question 7

What happens to
the oceanic crust as it collides with the continental crust?

Answer 7

The oceanic plate is subducted under the continental plate due to the high density of the oceanic plate.

Question 8

What do you think may happen to
the leading edge of the oceanic crust as it
continues to move downward?

Answer 8

it will undergo subduction process.

Question 9

What is formed on top of continental crust?

Answer 9

Volcanoes

Question 10

How is a volcano formed?

Answer 10

One plate subducts beneath the other, resulting in a variety of earthquakes and a line of volcanoes on the overriding plate.

Question 11

What necessary precautions you
should do during a volcanic eruption?

Answer 11

• Limit your time outdoors and use a cloth mask.
• Avoid areas downwind and river valleys.
• Take temporary shelter from volcanic ash where you are.
• Cover ventilation openings, seal doors and windows.
• Avoid driving in heavy ash.

Question 12

What are produced from the movement of tectonic plates?

Answer 12

Volcanoes and earthquakes

Question 13

It is composed of many individual huge pieces of solid rocks called plates

Answer 13

Lithosphere

Question 14

Individual huge pieces of solid rocks

Answer 14

Plates

Question 15

What is the Germanized form of “Pangaea”?

Answer 15

Pangäa

Question 16

Developed from the 1950s through the 1970s

Answer 16

Plate tectonic theory

Question 17

Combines the
continental drift theory

Answer 17

Plate tectonics

Question 18

Plates under landmasses

Answer 18

Continental Plates

Question 19

Plates under the ocean

Answer 19

Oceanic plates

Question 20

Thicker and less

Answer 20

Continental plates

Question 21

Thinner but denser

Answer 21

Oceanic plates

Question 22

It had its beginnings in 1915

Answer 22

Plate Tectonic Theory

Question 23

Who proposed the continental drift theory

Answer 23

Alfred Wegener

Question 23

The record of the strength and direction of Earth’s magnetic field

Answer 23

Paleomagnetism

Question 24

There are about __ volcanoes in the country

Answer 24

53

Question 25

What is a hotspot?

Answer 25

source of a molten rock in the mantle

Question 26

Occurs when two plates move away from each other and create a gap or a
rift between them.

Answer 26

Divergent Boundary

Question 27

Occurs where two plates slide each other, commonly forming either a
subduction zone or an orogenic belt.

Answer 27

Convergent Boundary

Question 28

Occurs when the plates slide against each other in opposite directions, producing
earthquakes.

Answer 28

Transform Boundary

Question 29

a region of deformed rocks.

Answer 29

orogenic belt

Question 30

is the convergent
movement of tectonic plates
whereby a denser plate is
pushed beneath a lighter one.

Answer 30

Subduction

Question 31

On the edges of the Pacific Plate lie a string of ___ volcanoes?

Answer 31

452

Question 32

Runs
along the coast of South America, the coast of

Answer 32

North America, the Bering Strait, Indonesia, New Zealand, Japan, and Philippines

Question 33

The oceanic plate subducts underneath the
continental plate, pushing the continental plate upward and forming __?

Answer 33

volcanoes

Question 34

The denser oceanic plate subducts under the continental plate and
sinks into the ___, the temperature___, causing the rocks
to melt and form ____.

Answer 34

mantle, increases, magma

Question 35

The Philippines belongs to the ____, which where multiple tectonic plates meet.

Answer 35

Ring of Fire

Question 36

He published his theory in History
of Ocean Basins (1962), and it
came to be called

Answer 36

Harry Hess, seafloor spreading

Question 37

Which crust is denser?

Answer 37

Oceanic Crust

Question 38

If there are two oceanic plates which one will subduct?

Answer 38

The older one

Question 39

If two oceanic plates have the same density, will both subduct?

Answer 39

Yes