Question

How does magma form?

when volcanoes erupt
when temperatures are hot enough to melt rock
when grains have been compacted together
O when new minerals form due to chemical changes in the rock

Answer 1

B when temperatures are not enough to melt rock.

Answer 2

when volcanoes erupt

&

when new minerals form due to chemical changes in the rock

or one or the other

Step-by-step explanation: