Class 7 Exam > Class 7 Questions > A volcano is a vent or an opening in the Eart...
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A volcano is a vent or an opening in the Earth's crust through which _____, ash, and smoke erupt.
- a)water
- b)magma
- c)sand
- d)air
Correct answer is option 'B'. Can you explain this answer?
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A volcano is a vent or an opening in the Earth's crust through which _...
A volcano is like a mountain with a hole on top. Sometimes, hot melted rock called magma comes out of this hole along with ash and smoke. This can happen when the volcano erupts.
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A volcano is a vent or an opening in the Earth's crust through which _...
Explanation:
Volcano:
A volcano is a vent or an opening in the Earth's crust through which magma, ash, and smoke erupt.
Magma:
Magma is molten rock beneath the Earth's surface. When pressure builds up, the magma forces its way to the surface through a volcano, resulting in an eruption.
Eruption:
During an eruption, the magma, along with gases, ash, and smoke, is expelled from the volcano. This process can be explosive and can lead to the formation of lava flows, ash clouds, and pyroclastic flows.
Ash and Smoke:
Ash and smoke are produced during a volcanic eruption. Ash consists of tiny rock particles that are blasted into the air, while smoke is a mixture of gases, ash, and steam.
Conclusion:
In conclusion, a volcano is a natural phenomenon that occurs when magma erupts through an opening in the Earth's crust, releasing ash, smoke, and other materials into the atmosphere. These eruptions can have significant impacts on the environment and surrounding areas.
Volcano:
A volcano is a vent or an opening in the Earth's crust through which magma, ash, and smoke erupt.
Magma:
Magma is molten rock beneath the Earth's surface. When pressure builds up, the magma forces its way to the surface through a volcano, resulting in an eruption.
Eruption:
During an eruption, the magma, along with gases, ash, and smoke, is expelled from the volcano. This process can be explosive and can lead to the formation of lava flows, ash clouds, and pyroclastic flows.
Ash and Smoke:
Ash and smoke are produced during a volcanic eruption. Ash consists of tiny rock particles that are blasted into the air, while smoke is a mixture of gases, ash, and steam.
Conclusion:
In conclusion, a volcano is a natural phenomenon that occurs when magma erupts through an opening in the Earth's crust, releasing ash, smoke, and other materials into the atmosphere. These eruptions can have significant impacts on the environment and surrounding areas.
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A volcano is a vent or an opening in the Earth's crust through which _____, ash, and smoke erupt.a)waterb)magmac)sandd)airCorrect answer is option 'B'. Can you explain this answer?
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