Podcast
Questions and Answers
Where does magma originate?
Where does magma originate?
- In the lower portion of the mantle known as asthenosphere (correct)
- At about 30 to 65 km below the Earth's surface
- In the upper part of the Earth's crust
- In the upper portion of the mantle known as asthenosphere
What is magma mainly composed of?
What is magma mainly composed of?
- Molten rock and minerals
- Molten rock, gas bubbles, and suspended crystals
- Molten rock and gas bubbles
- Molten rock, minerals, and gases (correct)
At what depth does the temperature rise high enough to melt rocks into magma?
At what depth does the temperature rise high enough to melt rocks into magma?
- At about 65 km below the Earth's surface
- At about 65 degrees per kilometer
- At about 30 km below the Earth's surface (correct)
- At about 30 degrees per kilometer
What type of activity is typically associated with Mayon volcano eruptions?
What type of activity is typically associated with Mayon volcano eruptions?
What makes up the mixture of magma besides molten rock and minerals?
What makes up the mixture of magma besides molten rock and minerals?
What is the primary component of magma?
What is the primary component of magma?
Where does magma originate?
Where does magma originate?
What is the temperature range at which rocks melt into magma?
What is the temperature range at which rocks melt into magma?
What does Mayon volcano eruptions typically include?
What does Mayon volcano eruptions typically include?
Besides molten rock, what else may magma contain?
Besides molten rock, what else may magma contain?
What is the primary composition of magma?
What is the primary composition of magma?
Where does magma originate?
Where does magma originate?
What typically accompanies powerful explosive activity in Mayon volcano eruptions?
What typically accompanies powerful explosive activity in Mayon volcano eruptions?
What is the temperature range at which rocks melt into magma?
What is the temperature range at which rocks melt into magma?
Besides molten rock and minerals, what else may magma contain?
Besides molten rock and minerals, what else may magma contain?
