Question

3. (a) stare (to look fixedly)
(b) stair la set of steps to
go up & down)
(a) heir (successon
(b) air (what we breathe)​

Answer 1

Answer:

Chemical engineering is a branch of engineering which deals with the study of design and operation of chemical plants as well as methods of improving production. Chemical engineers develop economical commercial processes to convert raw material into useful products.