Question

Match the columns.

Column  A	Column B
1. a change which cannot be easily reversed	a. man-made change
2 a change that repeats itself at regular intervals	b. chemical chang
3. a change that is made by humans	c. physical change
4. a change in which the original substance cannot be obtained	d. periodic change
5. a change where no new substance is formed	e. irreversible change
	f . slow change

 

Answer 1

Column  A	Column B
1. a change which cannot be easily reversed	e. irreversible change
2 a change that repeats itself at regular intervals	d. periodic change
3. a change that is made by humans	a. man-made change
4. a change in which the original substance cannot be obtained	b. chemical chang
5. a change where no new substance is formed	c. physical change