A or B... I mean when lava is poured out to the surface, heat and soilica content may play a role... That's what I think sorry :(
Answer:

Explanation:
As per Faraday's law of Electromagnetic induction we know that
Rate of change in magnetic flux will induce EMF in the closed conducting loop
so we have

now we have


now we have

now the induced EMF through this loop is given as



Answer:
the warm air would be up and cool would be down
Explanation:
warm air is less dense and cool air is more dense
Answer:
567m
Explanation:
By using formula of velocity.