1) What is TRUE about an active volcano? a) has not had an eruption for at least 10,000 years and is not expected to erupt again in a comparable time scale of the future. b) is a volcano that has had at least one eruption during the past 10,000 years. c) is a volcano that is not erupting but supposed to erupt again. d) are expected to erupt again at some point, despite being dormant for thousands of years. 2) Which of the following characteristics of a volcano depends on its magma emission? a) age b) size c) shape d) location 3) If geologists detect many small earthquakes in the area near a volcano, what can they infer about the volcano? a) It is dormant b) It is probably about to erupt. c) It is extinct d) It is a good source of geothermal energy 4) What triggers the small earthquakes that occur around a volcano before an eruption? a) upward movement of magma b) pyroclastic flow c) cooling magma inside the crust d) plate movements 5) Which of the following is not an indicator of a volcanic eruption? a) swelling or changing shape of volcano b) weather patterns c) earthquake frequency d) release of different gases from the volcano 6) Which among the following volcanoes is formed from: Cinders and ash? a) b) c) 7) Which among the following volcanoes is formed from: Mostly lava? a) b) c) 8) Which among the following volcanoes is formed from: Alternate solidification of lava and cinders? a) b) c) 9) Which of the following is an active volcano in the Philippines? a) Apo in Davao b) Isarog in Camarines Sur c) Bud Datu in Sulu d) Kanlaon in Negros Oriental 10) Tall, cone-shaped mountains in which layers of lava alternate with layers of ash are called. a) shield volcanoes b) composite volcanoes c) cinder cone volcanoes d) lava plateaus

3rd Grading - Q1

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