How does scientific notation work

How can one distinguish breccia from conglomerate? a. breccia contains angular clasts and conglomerate contains rounded clasts. b. breccia contains rounded clasts and conglomerate contains angular clasts. c. different minerals cement breccia than cement conglomerate. d. breccia contains sand and conglomerate contains silt.

How does the formation of intrusive and extrusive igneous rocks differ?

Are good conductors of heat also good conductors of electricity? explain your answer.