What is the final temperature of the gas?
O 143 K
231 K
485 K
0785 K

That result from subduction of oceanic plates beneath lighter continental plates. most of the earth's volcanoes are located around the pacific ring of fire because that the location of most of the earth's subduction zones.

No. an alpha particle is a pair of protons and a pair of neutrons, i.e. a helium