Grade 9 Quarter 3 Review Quiz

What type of volcano does not eject lava violently but flows over the crater rim forming a broad low profile?    

• shield

• composite

• cinder cone

• lava dome

Which of the following statements is INCORRECT about volcanic eruption?

• Vulcanian eruption is a silent eruption due to oozing lava.

• Strombolian eruption is an eruption characterized by fountain lava.

• Phreatomagmatic eruption is an eruption resulted to sideway emission of pyroclastic materials.

• Phreatic eruption is a short-lived eruption and maybe an onset of a large eruption.

What happens when volcanoes erupt?

• Lava and magma are released from a volcano—sometimes explosively.

• Flowing hot magma can incinerate, bury, and bulldoze things in its path.

• Pressure builds up above due to the formation of magma, which is molten rock mixed with gas.

• The magma flows out to the crater then flow into the Earth's surface and spew hot dangerous gases.

Which of the following statements is the positive effect of volcanic eruptions?

• spread of the aerosol particles from the plume around the globe.

• decrease the Earth’s surface temperature.

• produce unfertile soil in farming.

• loss of lives and properties

Which of the following happens when a volcano erupts?

I. Hot lava can spew out in gentle streams or can erupt violently into the air.

II. Death and serious injury to people and animals may result from burns and inhalation of hot ash and gases.

III. After erupting from the volcano, hot lava will solidify instantly once an object gets in its way as it flows trapping anything in its path.

IV. The extreme temperatures of rocks and gas inside pyroclastic flows can cause combustible material to burn.

• II, III and IV only

• III and IV only 

• I, II, III, and IV only

• I and II only

I. Hot water is pumped from deep underground through a well under high pressure.

II.  When the water reaches the surface, the pressure is dropped, which causes the water to turn into steam.

III. The steam spins a turbine, which is connected to a generator that produces electricity.

IV. The steam cools off in a cooling tower and condenses back to water.

V. The cooled water is pumped back into the Earth to begin the process again.

Which of the given choices tells the step 2 on how geothermal power plant works?

• I

• II

• III

• IV

How do ocean currents affect climate?

• Ocean currents that bring along cold water inland make the climate cold, while ocean currents

  that take along warm water to coastal areas makes the climate warm.

• Ocean currents that bring along warm water inland make the climate cold, while ocean

  currents that take along cold water to coastal areas makes the climate warm.

• As the temperature of water increases, temperature of air also increases.

• Ocean currents bring cold and warm water around the world.

Why does large bodies of water affect climate near them? Because __________

• Land regulates the climate of that area since land heats up and cools down faster.

• Water regulates the climate of that area since water heats up and cools down slower.

• Land regulates the climate of that area since land heats up faster and cools down slower.

• Water regulates the climate of that area since water heats up faster and cools down slower.

What will be the effect of too much methane and carbon dioxide in the atmosphere?

• enhanced greenhouse effect

• fresher and colder temperature

• strong waves in the ocean

• lower sea levels

Which of the following is considered as an inactive volcano in the Philippines?

• Taal in Batangas

• Mount Balungao in Pangasinan

• Mount Apo in Davao

• Kanlaon in Negros Oriental