3. Answer the questions according to the text. (3 points)
a. What does recycling consist in ?
Recycling consists in using old and waste products which are of no use and then converting them back to same new products
b. What are the main advantages of recycling?
It is energy saving and helps reduce air pollution as well as land pollution.
c. What materials are recycled currently?
The materials that are currently recycled are as follows: Paper, plastic, glass and aluminum cans.