Aspoon can sound like a bell. no this isn't a riddle. it's science. explain it

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.

The free body diagram shows a box being pulled to the left up a 25-degree incline. the magnitude of the normal force is

What practical value did astronomy offer to ancient civilizations?