Mention two advantages of railways and one disadvantage of airways.

(a) Name the terminal stations of East West Corridor.

(b) Who looks after the construction and maintenance of the following?

1. National Highways
2. Border Roads

Mention one advantage of sanitary landfill and one disadvantage of composting.

Give reasons for the following:

(a) We should avoid using plastics.

(b) Radioactive wastes are hazardous.

(c) Open dumping is not an environment friendly method of managing waste.