Biology
Assertion (A): Untreated sewage or effluents from industries poured into rivers harm the people living nearby the rivers.
Reason (R): Sewage becomes a suitable medium for microbes and insects to flourish which can cause many waterborne diseases.
- A is True and R is False.
- A is False and R is True.
- Both A and R are True.
- Both A and R are False.
Health Organisations
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Answer
Both A and R are True.
Reason — Untreated sewage and industrial effluents contain harmful chemicals, pathogens, and waste that can contaminate water, harming ecosystems and human health, especially for people who rely on the river for water bathing, or agriculture.
Sewage provides nutrients and a breeding environment for harmful bacteria, viruses, protozoa, and insects like mosquitoes. These microbes and vectors can cause diseases such as cholera, dysentery, typhoid, and malaria.
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Assertion (A): Red cross is a national as well as an international agency. Its main role is to extend relief and help to the victims of any calamity — flood, fire, famine, etc.
Reason (R): The emblem of red cross society is a white coloured cross painted on a red background.
- A is True and R is False.
- A is False and R is True.
- Both A and R are True.
- Both A and R are False.
Assertion (A): WHO is an older international body than red cross.
Reason (R): WHO was established in 1864 and red cross society in 1948.
- A is True and R is False.
- A is False and R is True.
- Both A and R are True.
- Both A and R are False.