(i) *Responsible: Mr Roy took the responsibility to organise the seminar
*Caring: He took the responsibility because he cared for his students fitness.
(ii) As a student we can you spread awareness about this issue by conducting group discussions on the pros and cons of junk food, through seminars, workshops, making students do projects on this topic and displaying them.
(iii) Tranquilizers are a class of organic compounds that are neurologically active drugs. When consumed they bring about a sense of well being. When taken without prescription can lead to addiction. They are used to treat stress, anxiety, mental diseases and irritability. Eg: Valium, Haldol.
(iv) Aspartame is an artificial sweetener much sweeter than sugar. It is stable at low pH and low temperatures, hence used in cool drinks and frozen foods.
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