Question 1

Which statement is TRUE about magma?

Accepted Answer

Magma forms when rocks melt

Answer

Magma does not contain dissolved gases

Answer

Magma always comes from the lower mantle

Answer

Magma temperatures exceed 10,000

Question 2

Which of the following is the most dangerous type of volcanic eruption?

Accepted Answer

Plinian

Answer

Volcano

Answer

Vulcanian

Answer

Strombolian

Question 3

What is the material produced in the air when the volcano erupts?

Accepted Answer

Ash clouds

Answer

Magma

Answer

Fire

Answer

Lava

Question 4

What kind of volcano has the possibility to erupt again?

Accepted Answer

Dormant

Answer

Active

Answer

Extinct

Answer

None of the above

Question 5

Which of the following is NOT a benefit from volcanoes?

Accepted Answer

Land destroyed

Answer

Geothermal plant

Answer

Fertile soil

Answer

Increased tourism

Question 6

Which volcano has a violent eruption with alternating layers of lava flow and volcanic particles?

Accepted Answer

Composite

Answer

Cinder

Answer

Shield

Answer

All of the above

Question 7

What type of volcano has a gentle eruption with oozing lava flow?

Accepted Answer

Shield

Answer

All of the above

Answer

Composite

Answer

Cinder

Question 8

Which of the following volcanoes is incorrectly matched?

Accepted Answer

Mount Smith-Inactive

Answer

Mount Batulao-Inactive

Answer

Mount Giron- Inactive

Answer

Mount Kanlaon- Active

Question 9

Volcanoes emit magma in different amounts. Which of the following characteristics of a volcano depends on its magma emission?

Accepted Answer

Shape

Answer

Location

Answer

Size

Answer

Age

Question 10

This type of volcano is formed almost entirely from great amounts of liquid lava.

Accepted Answer

Shield

Answer

lava dome

Answer

Stratovolcano

Answer

Cinder cone

Question 11

Which of the following is the correct order of the parts of a geothermal powerplant?

Accepted Answer

Magma → reservoir → turbine → generator → transmission lines

Answer

Magma → generator → turbine → reservoir → transmission lines

Answer

Magma → turbine → generator → reservoir → transmission lines

Answer

Magma → turbine → reservoir → generator → transmission lines

Question 12

What is the proper sequence of energy conversion in a geothermal powerplant?

Accepted Answer

Heat energy → mechanical energy → electrical energy

Answer

Mechanical energy → heat energy → electrical energy

Answer

Electrical energy → mechanical energy → heat energy

Answer

Heat energy → electrical energy → mechanical energy

Question 13

What energy is harnessed from the Earth’s underground?

Accepted Answer

Geothermal

Answer

Mechanical

Answer

Electrical

Answer

Solar

Question 14

Which government agency is tasked to monitor earthquakes and volcanoes in our country?

Accepted Answer

PHIVOLCS

Answer

IATF

Answer

DENR

Answer

DOH

Question 15

Which of the following is a hardened magma that is formed across the rock layers?

Accepted Answer

Dike

Answer

Batholith

Answer

Sill

Answer

Volcanic neck

Question 16

What causes magma to erupt towards the earth’s surface?

Accepted Answer

Dissolved gases trapped in the magma

Answer

The silica in the magma

Answer

The density of the magma

Answer

Gravity of the lithosphere

Question 17

Which of the following triggers the small earthquakes that occur before a volcanic eruption?

Accepted Answer

Upward movement of magma

Answer

Pyroclastic flow

Answer

Cooling of magma inside the crust

Answer

Plate movements

Question 18

What is the volcanic hazard made up of rocky particles about the size of a grain of sand?

Accepted Answer

Volcanic ash

Answer

Volcanic cinder

Answer

Pahoehoe

Answer

Volcanic bombs

Question 19

Which of the following is NOT a sign of volcanic eruption?

Accepted Answer

Weather pattern

Answer

Release of different gases from the volcano

Answer

Swelling or changing shape of volcano

Answer

Earthquake frequency

Question 20

Which of the following factors affect the temperature when magma forms?

Accepted Answer

Viscosity

Answer

Water

Answer

Pressure

Answer

Composition of materials

Question 21

Why do places of the same latitude but different altitudes experience a different climate?

Accepted Answer

Higher altitudes have a lower temperature.

Answer

Higher altitudes have a higher temperature.

Answer

The amount of heat received varies.

Answer

The amount of precipitation differs.

Question 22

What climate is experienced by regions receiving vertical rays of sunlight?

Accepted Answer

hot climate

Answer

temperate climate

Answer

moderate climate

Answer

cool climate

Question 23

Which of the following BEST describes a climate?

Accepted Answer

The pattern of weather that occurs in a region over a long period of time.

Answer

The disturbance in the atmosphere that happens over a long period of time.

Answer

The weather that occurs in the atmosphere within a day.

Answer

The pattern of weather that occurs in a region over a short period of time.

Question 24

Which factor/s can be considered in constructing geothermal powerplants?

Accepted Answer

all of the above

Answer

construction cost

Answer

location

Answer

places with hot springs

Question 25

The following are the advantages of a geothermal powerplant EXCEPT...

Accepted Answer

can cause earthquake

Answer

environment-friendly

Answer

efficient source of energy

Answer

renewable energy source

Question 26

Why do geothermal power plants cause global warming?

Accepted Answer

Greenhouse gases escape during the digging of the ground.

Answer

Because of the transformation of electricity

Answer

Steam released by the crater emits greenhouse gases.

Answer

Because of the burning of fuel

Question 27

What is the reason why the Philippines is an ideal place to construct a geothermal power plant?

Accepted Answer

Because the Philippines is near the Pacific Ocean.

Answer

Because the Philippines have many active stratovolcanoes.

Answer

Because the Philippines is surrounded by water.

Answer

Because the Philippines is near a convergent boundary.

Question 28

In what area is the best place to construct a Geothermal Powerplant?

Accepted Answer

near an active volcano

Answer

near an extinct volcano

Answer

far from an active volcano

Answer

far from an extinct volcano

Question 29

What makes the turbine rotate in a geothermal powerplant?

Accepted Answer

Steam

Answer

water

Answer

heat

Answer

Carbon

Question 30

All active volcanoes can produce energy, which volcano is a good source of geothermal energy?

Accepted Answer

Stratovolcano

Answer

Lava Dome

Answer

Cinder

Answer

Shield

Question 31

It is a type of radiation that results from the heating up of the earth’s surface.

Accepted Answer

infrared

Answer

solar radiation

Answer

ultraviolet

Answer

gamma rays

Question 32

Which of the following human activities would result in an increased amount of carbon dioxide in the atmosphere?

Accepted Answer

Burning of fossil fuels to sustain the use of electrical energy at home.

Answer

Reforestation or reviving of the forests.

Answer

Excessive use of air conditioning units at home.

Answer

Turning off electrical appliances to conserve energy.

Question 33

The following are TRUE about El Niño, EXCEPT...

Accepted Answer

It is brought about by unusual stronger trade winds pushing warm water towards Asia and bringing cold water to the surface.

Answer

It is a periodic change in the temperature on the surface of the Pacific Ocean.

Answer

It brings drought and very hot weather in the Philippines.

Answer

In simple terms, it is regarded as the warm phase in the Pacific Ocean.

Question 34

What is the most alarming effect brought by global warming?

Accepted Answer

rising temperature

Answer

pollution

Answer

deforestation

Answer

climate change

Question 35

Which of the following is TRUE about La Niña?

Accepted Answer

It is the result of strong trade winds pushing warm water towards Asia.

Answer

It brings too much drought and high temperature to the Philippines.

Answer

None of the above.

Answer

It brings warmer temperatures than usual in some areas.

Question 36

What greenhouse gases have the highest percentage in the atmosphere?

Accepted Answer

Carbon dioxide

Answer

Fluorinated gases

Answer

Methane

Answer

Nitrous oxide

Question 37

Which of the following BEST describes the greenhouse effect?

Accepted Answer

All statements are true.

Answer

It is a natural phenomenon that directly results in global warming.

Answer

It is a condition wherein more heat is trapped in the atmosphere causing global warming.

Answer

It is the natural way of warming the planet to help maintain all life forms.

Question 38

How does prevailing wind affect climate?

Accepted Answer

Prevailing wind shows the main direction that wind comes from and can bring mild, wet weather if it blows over warm oceans.

Answer

Prevailing wind describes the speed of the wind in a particular place.

Answer

Prevailing wind brings heat and moisture to certain regions.

Answer

Prevailing wind is the amount of moisture that can be found in an area.

Question 39

What side of the mountain often receives the most precipitation?

Accepted Answer

Windward

Answer

Summit

Answer

Leeward

Answer

Rain Shadow

Question 40

Why are the coldest places on earth found at the poles?

Accepted Answer

less amount of thermal radiation is received by these areas

Answer

great amount of gaseous particles trap heat from the surface

Answer

less amount of gaseous particles trap heat from the surface

Answer

great amount of thermal radiation is received by these areas

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