mainland
its the composite cone volcano?
not unles the volcano has become extinct ad there is a tiny bit of magma left inside the volcano. It cant cool down though if the volcao is still active bevause it wll just keep building up and building up on tension and heat until finally the volcano will erupt again.
Mt. Pelee is a stratovolcano.
It looks like a mountain with occasional smoke coming from the top
No. A caldera is a volcanic structure. It is formed by the collapse of a volcao rather than a magma body.