Select each correct answer. more than one answer may be correct. british scientist john dalton is best known for his atomic theory. which of the following ideas is part of dalton's theory? a. all matter is made up of atoms, which cannot be destroyed or broken down. b. atoms of different elements are unique and can combine to form compounds. c. chemical reactions occur when atoms are rearranged. d. all atoms of a given element are identical.

Rocks, as they are compressed, begin forming mountains above the earth's surface when two continental plates converge. the continental crust increases in depth as the mountains grow above. the himalayan mountains formed at a convergent plate boundary in this manner. the rocks are smashed together causing them to due to the intense heat and pressure from the colliding plates and eventually forming rock. a) melt; igneous b) layer; sedimentary c) recrystallize; metamorphic d) melt into the earth's interior; metamorphic