11 multiple choice 1 point why is some flowing lava black and hard on top and red and more liquid deeper…
11 multiple choice 1 point why is some flowing lava black and hard on top and red and more liquid deeper inside? burned material is mixed in the top layer. the top starts to cool since it is exposed to air. the top is mixed with ash.
Answer
Brief Explanations:
Lava cools when exposed to air. The top - layer of flowing lava is in contact with air and cools faster, becoming black and hard. Deeper inside, it remains hot and liquid, appearing red. There is no indication of burned material or ash mixing causing this difference.
Answer:
The top starts to cool since it is exposed to air.