Question

question 1 (2 points)
listen
lava that cools extremely rapidly tends to have a glassy texture.
true
false
question 2 (2 points)
listen
increased pressure raises the melting temperature of rock.
true
false

Explanation:

• For Question 1: When lava cools extremely rapidly, there is no time for mineral crystals to form. This results in a glassy texture, like in obsidian.
• For Question 2: According to the principles of phase - change in geology, increased pressure generally raises the melting temperature of rock. This is because higher pressure makes it more difficult for the rock to transition from solid to liquid state.

Answer:

Question 1: A. True
Question 2: A. True