Alight year is equal

a) 5,866,000,000,000 miles

b) 5.866 miles

c) 5,866,000 miles

d) 5,866 miles

It is 5,879,000,000,000 miles

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.