Which correctly lists the three agents that must be present for cementation to occur? minerals, heat, sediment
water, minerals, sediment
heat, animals, plants
sediment, heat, animals

Aphysical change is one that you can put in and remove like a ham sandwich. the stuff you put in there can be changem its not permanet. a chemical change is on that can't be change thats permanet. like when you make a cake and bake it. you can't get those ingredients back.