Page 43 - Innovator's Science-8

ii. Politely decline the cigare e at the party and explain the health risks to your friend.
iii. Schools can help prevent students from indulging in such habits by educa ng them about the health
risks and organizing awareness programs regularly.

6. Saniya claims to her friend Vinita that “An bio cs can cure any infec on, so we don't need to worry
about diseases.” What ques on(s) can Vinita ask her to help Saniya understand that her statement is
incorrect?
Ans. Why Saniya's Statement is Wrong:
• An bio cs only work against bacterial infec ons, not viral ones like the flu or common cold.
• Overuse or misuse of an bio cs can lead to an bio c resistance, making them less effec ve in the future.
• Some diseases are caused by fungi, protozoa, or viruses, which require different treatments.
Vanita can ask Saniya, Did you know that an bio cs don't work on viruses like the flu or measles? They're
only useful for bacterial infec ons. Also, if we take an bio cs when we don't need them, they might stop
working when we really do. That's why doctors are careful about prescribing them.”
7. The following table contains informa on about the number of dengue cases reported in a hospital
over one year:

Make a bar graph of the number of cases on the Y-axis and the month on the X-axis. Cri cally analyses
your findings and answer the following:
i. In which three months were the dengue cases highest?
ii. In which month(s) were the cases lowest?
iii. What natural or environmental factors during
the peak months might contribute to the
increase in dengue cases?
iv. Suggest a few preven ve steps that the
community or government can take before the
peak season to reduce the spread of dengue.
Ans. i. The dengue cases were highest in July, August,
and September.
ii. The cases were lowest in January.
iii. Natural or environmental factors during the peak months, such as the rainy season and standing
water for mosquito breeding, might contribute to the increase in dengue cases.
iv. The community or government can take preven ve steps like removing stagnant water, using
mosquito nets, and spraying insec cides during this period regularly to reduce the spread of dengue.

8. Imagine you are in charge of a school health campaign. What key messages would you use to reduce
communicable and non-communicable diseases?
Ans. Do yourself

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