(a) Why are the colourful polysterene and plastic packaging used for protecting the food, considered an environmental menace?
(b) Write about the remedy found for the efficient use of plastic waste by Ahmed Khan of Bangalore.

Write the effective remedy found by Ahmed Khan of Bengaluru for the efficient use of the plastic waste generated by big cities.

While teaching the chapter " Our Environment " the teacher stressed upon the harmful effects of buring of fossil fuels, plastic, paper etc. The students noticed the extensive use of plastic and polythen in daily life, which can be avoided and the surroundings can be kept clean. they decided to make their school " plastic and polythene" free and motivated each other for its minimum use. (a) Why should the use pf polythene and plastic be reduced in daliy life ? (b) In what ways the students would have avoided the use of plastic and polythene in their school ? (c) How the students would have motivated each other for the success of their decision ?

A group of youth were having a 'rave party' in an isolated area and was raided by police. Packets of smack and syringes with needles were found littered around. Why is taking smack considered an abuse ? b Write the chemical name of smack and the name of its source plant. c Syringes and needles used by the youth for taking the drug could prove to be very fatal. Why ?