(i) The two values displayed by Mr Chopra are
• Caring – He was concerned about student’s health and thus took an initiative because he cares about them.
• Social service- He conducted the health survey in most of the schools and discovered a tremendous improvement in the health of the students.
(ii) Awareness can be spread by displaying posters, slogans, speeches, by conducting seminars and also encouraging others for participating in such activities so that more and more people can be aware of it.
(iii) Antidepressant drugs should not be taken without consulting a doctor because they have a lot of side effects like indigestion, headache, stomach aches, drowsiness, etc.
(iv) Two examples of artificial sweeteners are Aspartame and Saccharin.
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<span lang="EN-USChemistry - Exemplar