2. What is the term used to represent
the opening of the volcano where
magma
comes out?
A. chamber B. crater
C. summit D. vent
3. •What is the basis of classifying
volcanoes as active or inactive?
A.size of the base
B.B. shape of the cone
C. age of the volcano
D. records of eruption
4. The eruption of Mount Pinatubo in the
Philippines on June 15, 1991, was the second
largest of the 20th century. Its eruption was
characterized as anexcessively explosive type of
eruption of gas and pyroclastic. Which type of
the eruption is this?
A. Phreatic B. Phreatomagmatic
C. Plinian D. Strombolian
5. •Mt. Akir-Akir, located in Province of North
Cotabato, has no record of activity for the
last 10,000 years. Which of the following
statements is CORRECT?
A.It is an active volcano.
B.B. It is an inactive volcano.
C. It is a potentially active volcano.
D. It is a destructive volcano.
6. • Taal volcano in Batangas exhibits phreatic or hydrothermal
eruption. Which of the following statements describes a
phreatic eruption?
A. It is a violent eruption due to the contact between water
and magma.
B. It is an excessively explosive type of eruption of gas and
pyroclastic.
C. It is a periodic weak violent eruption characterized by
fountain of lava.
D. It is characterized by tall eruption columns that reach up to
20 km high with pyroclastic flow and ash fall tephra.
7. •What term is used to describe the
molten material deep inside the
Earth?
A.hot spot
B. lava
C. magma
D.volcano
8. •Which is NOT a contributor in the
formation of magma?
A.pressure
B.composition
C. temperature
D. distance from the core
9. •Which type of magma has the
lowest chemical and gas content?
A.Andesitic
B.Basaltic
C. Rhyolitic
D. None of the choices
10. •Heat from the volcano can be utilized as
energy source. Which energy comes from
the volcano?
A. Biomass
B. Dendrothermal
C. Geothermal
D. Hydroelectric
11. •Which locations can be good
sources of geothermal energy?
A. Ocean, river, sea
B. Geyser, ocean, river
C. Geyser, hot spring, ocean
D. Geyser, hot spring, steam
vents
12. •Which problem may occur as a result of
building a geothermal energy facility?
A. The burning of fossil fuel.
B. Water pollution from the chemicals.
C. Toxic gases can be released when
drilling.
D. All the above
13. • How is geothermal energy harnessed as source of
electricity?
A. Wells are drilled on Earth’s surface to pump steam or
hot water
B. The steam from hot water spins the turbine to
produce electricity
C. The turbines are connected to generators that
generates electricity
D. All of the above
14. • Which shows the correct sequence of the flow of
energy in a Geothermal Power Plant?
A. Electricity – steam – generator – turbine – hot water
B. Hot water – generator – turbine – steam – electricity
C. Generator – turbine – steam – hot water – electricity
D. Hot water – steam – turbine – generator – electricity
15. • Arrange the following sequence of conversion of geothermal
energy into electrical energy in a geothermal power plant.
I. Steam is used to turn the turbine
II. Cool water is injected to the ground
III. Generator converts mechanical to electrical
energy
IV. Hot water is pumped up and steam is produced
A. I, II, III, IV B. II, III, I, IV
C. II, IV, I, III D. IV, I, III, II
16. •What do you call the physical
attributes, surface shapes and
features of a particular area?
A. altitude
B. latitude
C. seismograph
D. topography
17. •Which part of the mountain
has more vegetation?
A. top
B. leeward
C. sideward
D. windward
18. •In a theory, Earth’s surface was
covered by vast sheets of ice.
What do you call these vast
sheets of ice?
A. glaciers B. haze
C. ice D. snow
19. • Which BEST describes the leeward side of a
mountain?
A. The side of the mountain that experiences floods.
B. The side of the mountain that receives less
precipitate.
C. The side of the mountain that receives more
precipitate.
D. The side of the mountain that experiences more
vegetation.
20. •Which refers to the angular
distance from the equator that
greatly affects the climate and
weather of an area?
A. altitude B. elevation
C. height D. latitude
21. • Which statement supports the idea of leeward and
windward sides of the mountain?
A. Air pressure in leeward is higher than the windward
side.
B. The two sides of the same mountain have different
climates because of the water and air movement.
C. The leeward side of the mountain experiences floods
while the windward side experiences less precipitate.
• D. Both A and B
22. •During summer, many people visit
Baguio because of the cold weather.
What do you think makes Baguio cold?
A. latitude
B. altitude
C. topography
D. distance from the ocean
23. • How does higher altitude affect the climate of an
area?
A. The closer you get to the equator, the hotter it gets.
B. The higher you go above sea level, the colder it gets.
C. The farther you get from the equator, the colder it
gets.
D. The process by which heat from the sun is trapped
near Earth's surface
24. •Why does latitude cause differences in
temperature?
A. It is due to climate change.
B. It is due to the distances of mountain ranges.
C. It is due to the distance from the earth to the
mountains.
D. It is due to the curve of the earth and distance
from equator.
25. • When moist winds approach a mountain, these often drop
rain as winds rise over the mountain and come down on the
other side. As the air comes down the leeward side, it
warms, expands, and reduces the possibility of precipitation.
How does this phenomenon affect the leeward side of the
mountain?
A. The leeward side of the mountain is cooler and wet.
B. The leeward side of the mountain is cooler and drier.
C. The leeward side of the mountain is warmer and wet.
D. The leeward side of the mountain is warmer and drier.
26. • How does the windward side differ from the leeward side of
a high land?
A. The windward receives more precipitation than the
leeward.
B. The windward side receives more heat than the leeward
side.
C. The leeward side has more vegetation than the windward
side.
D. The leeward side receives more precipitation than the
windward side.
27. •What type of volcanoes are formed from
viscous or sticky lava that does not flow
easily?
A. cinder cones
B. composite volcanoes
C. lava domes
D. shield volcanoes
28. • Which are considered active volcanoes in the
Philippines?
I. Mayon Albay III. Kanlaon in Negros Island
II. Calayan in Cagayan IV. Hibok-hibok in Camiguin
• A. I and II only B. I, II, and III only
• C. I, II, and IV only D. I, III, and IV only
29. •Viscosity is a measure of a material’s
resistance to flow. Which affects the
viscosity of magma?
A. temperature of the magma
B. chemical composition of the magma
C. presence of dissolved gases in the magma
D. all of the choices
30. • Magma is a mixture of minerals and volcanic gases.
Which describes the composition of gases in magma?
A. Mostly H2O (water vapor) & some CO2 (carbon
dioxide)
B. Major amounts of Sulfur, Chlorine, and Fluorine
gases
C. Mostly CO2 (carbon dioxide) and few H2O (water
vapor)
D. Mostly SO2 (sulfur dioxide) and some H2O (water
vapor)
31. •Which are the basis of classifying the types of
climate of an area?
A. air pollution, wind, and temperature
B. precipitation, temperature, and wind
C. topography, wind, and water cycle
D. water cycle, wind, and precipitation
32. • Which is TRUE about greenhouse effect?
A. Greenhouse gases on the surface absorb heat from the
atmosphere.
B. Greenhouse gases on the surface absorb heat from the
earth’s interior.
C. Greenhouse gases in the upper atmosphere absorb heat
from the outer space.
D. Greenhouse gases in the lower atmosphere absorb heat
from the earth’s surface.
33. •El Niño: ________La Niña: _________
A. unnatural warming, natural cooling
B. natural warming, unusual cooling
C. unusual warming, unusual cooling
D. unusual warming, unnatural cooling
34. • Write:
A. If the first statement is correct and the second statement is
incorrect.
B. If the first statement is incorrect and the second statement is
correct.
C. If both statements are correct.
D. If both statements are incorrect.
• I. Methane has a lesser warming effect than CO2.
• II. Carbon dioxide is responsible for over 60% of the enhanced
greenhouse effect.
35. •What is the closest star to
Earth?
A. Antares B. Rigel
C. Sirius D. Sun
37. •Which statement is TRUE about stars?
A. Starts are made of dust particles.
B. Stars are made of liquid substances.
C. Stars are made of different solid rocks.
D. Stars are made of hydrogen and helium
gas.
38. • Which of the following statement is TRUE about constellations?
A. The patterns of asteroids viewed from earth that resembled different
images.
B. The earth-based interpretation of two-dimensional star patterns on
the sky.
C. The patterns on the sky made up of stars with different brightness
and distances from earth.
D. Both B and C.
39. • Are all the constellations visible from anywhere on
Earth in the entire year?
A. No, because as the Earth revolves around the sun.
B. No, because there are times that stars do not give off
light.
C. Yes, because all constellations can be found in a one
place.
D. Yes, because all the constellations do not change its
position.
40. •Knowing the altitude of Polaris will
determine your latitude. If you are at
the north pole, how many degrees is the
north star above the horizon?
A. 45 B. 90
C. 180 D. 360
41. •Why do we get to see particular zodiac
constellation at specific times of the year?
A. Because the earth rotates.
B. Because the sun seems to rise and set.
C. Because the earth revolves around the sun.
D. Because the zodiac constellations have its own
path.
42. •How do ancient Greeks name stars within
the constellation?
A. according to figure
B. according to distance
C. according to brightness
D. according to their position in the
constellation
43. • Are all the constellations visible from anywhere on
Earth in the entire year?
A. No, because as the Earth revolves around the sun.
B. No, because there are times that stars do not give off
light.
C. Yes, because all constellations can be found in a one
place.
D. Yes, because all the constellations do not change its
position.
44. • Is the sun the biggest factor why there are less visible
constellations during daytime?
A. No, because the sun has nothing to do with it.
B. Yes, because it is closer, and brighter as seen on
earth.
C. Yes, because it helps transform them into other
celestial bodies.
D. No, because the sun is the one responsible to give
light to the moon.
45. • Why are some constellations not seen in certain months?
A. Because the earth revolves around the sun.
B. Because the brightness of the sun outshines their visibility.
C. Because of the gravity that affects the rotation and
revolution of the earth.
D. Because of the tidal waves attracting each other, creating a
huge tsunami that washed out the constellation.
46. •How are constellation being used?
A. in navigation
B. in keeping track of the calendar
C. in assessing when to plant crops
D. all of the above
