A. Write true if the statement is correct and false if not.
1. The release of magma from the crater is called an earthquake.
2. Pyroclastic materials consist of lava, ashes, and rocks.
3. Volcanic eruptions may last for only a few minutes.
4. When magma flows on the surface, it is already called lava.
5. Taal Volcano is found in Batangas.
6. When lava just flows out of the crater and gaps along the sides of the volcano, it is an explosive
eruption.
7. Fumaroles can provide geothermal steam to generate electricity.
8. Volcanic eruptions can destroy properties and kill people.
9. Ashes emitted by the volcano can make the soil more fertile.
10. When a volcano erupts, it releases gases. These gases help improve the quality of air in the
atmosphere.
11. Rocks from volcanoes are used by scientists to study the interior of the earth.
12. When a volcano is about to erupt, the nearby places may also experience an earthquake.

Answer :

1. False. The release of magma from the crater is not called an earthquake. An earthquake is a shaking of the ground caused by a sudden release of energy in the Earth's lithosphere. 2. True. Pyroclastic materials consist of lava, ashes, and rocks. They are fragments of volcanic rock that are erupted during a volcanic eruption. 3. True. Volcanic eruptions may last for only a few minutes in some cases. However, they can also last for days, weeks, or even months depending on the volcano and the eruption style. 4. True. When magma flows on the surface, it is already called lava. Magma is molten rock beneath the Earth's surface, and once it reaches the surface and flows out, it becomes lava. 5. True. Taal Volcano is found in Batangas, Philippines. It is one of the most active volcanoes in the country. 6. False. When lava just flows out of the crater and gaps along the sides of the volcano, it is not an explosive eruption. An explosive eruption is characterized by violent ejection of magma, ash, and gases. 7. True. Fumaroles are openings in the Earth's crust that emit steam and gases. They can provide geothermal steam which can be used to generate electricity in some areas. 8. True. Volcanic eruptions can indeed destroy properties and cause fatalities. The lava flows, ashfalls, pyroclastic flows, and lahars associated with volcanic eruptions can pose significant hazards to people and infrastructure. 9. True. Ashes emitted by the volcano can make the soil more fertile. Volcanic ash is rich in nutrients and when deposited on the ground, it can enhance soil fertility. 10. False. When a volcano erupts, it releases gases, but these gases can have harmful effects on air quality and human health. They can contribute to air pollution and acid rain. 11. True. Rocks from volcanoes, such as volcanic rocks and minerals, are indeed used by scientists to study the interior of the Earth. By analyzing the composition of these rocks, scientists can learn about the processes occurring deep within the Earth. 12. True. When a volcano is about to erupt, the nearby places may indeed experience an earthquake. The movement of magma beneath the surface can cause the ground to shake, leading to volcanic earthquakes.

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