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What happens to magma when it erupts onto the Earth's surface?
- a)It becomes ash
- b)It transforms into gas
- c)It cools and hardens into lava
- d)It evaporates
Correct answer is option 'C'. Can you explain this answer?
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What happens to magma when it erupts onto the Earth's surface?a) It be...
When magma erupts onto the Earth's surface, it is referred to as lava. Lava can flow quickly and reaches temperatures as high as 1000 °C, cooling down to form solid rock. This process contributes to the formation of various geological features, including volcanic islands and plateaus, such as the Hawaiian Islands.
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What happens to magma when it erupts onto the Earth's surface?a) It be...
Magma and Its Journey
When magma erupts onto the Earth's surface, it undergoes significant changes. The correct answer is that it cools and hardens into lava.
What is Magma?
- Magma is molten rock located beneath the Earth's surface.
- It contains minerals, gases, and crystals.
The Eruption Process
- When magma rises to the surface, it can erupt through volcanoes.
- This eruption releases magma into the atmosphere.
Transformation into Lava
- Once magma reaches the surface, it is called lava.
- As lava flows, it begins to cool down rapidly due to contact with the air and the ground.
Cooling and Hardening
- As the lava cools, it transforms from a liquid state into a solid state.
- This solidification process creates various types of rock, such as basalt or pumice.
Why is This Important?
- The cooling and hardening of lava play a crucial role in shaping the Earth's landscape.
- It forms new landforms, such as islands and mountains, and contributes to the rock cycle.
In conclusion, when magma erupts onto the Earth's surface, it is essential to understand that it cools and hardens into lava, leading to the formation of new geological features.
When magma erupts onto the Earth's surface, it undergoes significant changes. The correct answer is that it cools and hardens into lava.
What is Magma?
- Magma is molten rock located beneath the Earth's surface.
- It contains minerals, gases, and crystals.
The Eruption Process
- When magma rises to the surface, it can erupt through volcanoes.
- This eruption releases magma into the atmosphere.
Transformation into Lava
- Once magma reaches the surface, it is called lava.
- As lava flows, it begins to cool down rapidly due to contact with the air and the ground.
Cooling and Hardening
- As the lava cools, it transforms from a liquid state into a solid state.
- This solidification process creates various types of rock, such as basalt or pumice.
Why is This Important?
- The cooling and hardening of lava play a crucial role in shaping the Earth's landscape.
- It forms new landforms, such as islands and mountains, and contributes to the rock cycle.
In conclusion, when magma erupts onto the Earth's surface, it is essential to understand that it cools and hardens into lava, leading to the formation of new geological features.
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