In which of these samples do the molecules most likely have the least kinetic energy?

solid iron at 25°c
molten iron at 1600°c
solid iron at 98°c
iron vapor at 2900°c

May someone me with these science questions

Which answer tells the reason the earth’s climate is getting warmer? too many animals are becoming extinct. large glaciers are melting in antarctica. the earth is moving closer to the sun. driving cars gives off gases that trap heat in the atmosphere.

Under which circumstances are kp and kc equal for the reaction aa(g)+bb(g)⇌cc(g)+dd(g)?