SUMMATIVE IN SCIENCE 9
NAME:
SECTION:
1.What is the primary gas emitted by volcanoes during
eruptions that contributes to climate change?
a) Oxygen
b) Carbon dioxide
c) Nitrogen
d) Helium
2.Which of the following is NOT a direct effect of volcanic
eruptions on climate?
a) Cooling of the Earth's surface
b) Increase in greenhouse gas emissions
c) Disruption of rainfall patterns
d) Acid rain formation
3.How do volcanic eruptions impact global temperatures?
a) They always lead to immediate warming.
b) They always lead to immediate cooling.
c) The impact depends on the scale of the eruption and the
type of gases emitted.
d) They have no significant impact on global temperatures.
4.What is the molten rock beneath the Earth's surface called?
a) Lava
b) Magma
c) Ash
d) Tephra
5.Which type of volcano has a broad, gently sloping cone and
is characterized by non-explosive eruptions?
a) Stratovolcano
b) Shield volcano
c) Cinder cone volcano
d) Composite volcano
6.What is the opening at the top of a volcano called?
a) Crater
b) Vent
c) Caldera
d) Fumarole
7.What is the name for the large depression formed when a
volcano collapses after an eruption?
a) Crater
b) Vent
c) Caldera
d) Fissure
8.Which layer of the Earth is primarily made up of molten
rock and is the source of volcanic activity?
a) Mantle
b) Crust
c) Outer core
d) Inner core
9.Which type of volcano is built up by alternating layers of
lava flows, volcanic ash, and pyroclastic material?
a) Stratovolcano
b) Shield volcano
c) Cinder cone volcano
d) Fissure volcano
10.Which volcanic hazard is a fast-moving mixture of watersaturated volcanic debris that flows downslope during and
after eruptions?
a) Lava flow
b) Lahar
c) Pyroclastic flow
d) Tephra fall
11.What is the primary greenhouse gas responsible for
trapping heat in the Earth's atmosphere?
a) Carbon dioxide
b) Oxygen
c) Nitrogen
d) Methane
12.The "greenhouse effect" is primarily caused by:
a) Human activity
b) Natural processes
c) Both human activity and natural processes
d) It is a myth
13.What is the term for the gradual increase in the Earth's
average temperature due to human activities?
a) Global warming
b) Climate change
c) Greenhouse effect
d) Ozone depletion
14.In which geological setting are most geothermal reservoirs
found?
a) Volcanic areas
b) Desert regions
c) Coastal regions
d) Tectonically inactive zones
15.This country is the 3rd largest producer of geothermal
energy.
E. Asia
F. Mexico
G. Japan
H. Philippines