B)is physical change cause it can back from it's normal condition.
c &d) chemical change cause it cannot back from it's normal conditions.
I hope it will help
26. Given the nuclear equation: 58 scu Ni + X 58 What nuclear particle is represented by X? (1) - 26251699.
Nice trip I hope he has a lot of fun on that camel
Sedimentary rocks are turned into metamorphic rocks by heat and pressure
The Jaeger reading cards are used to test near vision. It's usually held by a patient at a certain distance from the eye depending on the size being read. The smallest letters one can read is what determines their visual acuity!