(i) Products made from petrochemicals are growing in popularity because they are cost effective, economically stable and do not depend on agricultural raw material. (ii) A heavy engineering industry requires huge capital investment because it requires enormous amount of power, good transport facility and heavy bulky raw material which is costly. (iii) The electronics industry contributes to the development of the country because it has largely contributed to space technology, communication, information technology, software industry, medical sciences and defence to develop with electronic apparatus.