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Class 9 · Water Security · 10 Aug 2026Print Preview
Class 9 · Water Security · 10 Aug 2026
Max marks: 10
Grade Class 9 · Water Security · 5 questions
NameClassDate
1.
Match the water quality parameter with its primary health concern or consequence when present in excess in drinking water.
[2 marks]
Column A
Column B
1. Fluoride
a. Dental and skeletal fluorosis
2. Nitrate
b. Blue baby syndrome (Methemoglobinemia)
3. Lead
c. Damage to the central nervous system
4. Iron
d. Staining of laundry and bitter metallic taste
Answer
2.
In traditional arid water management of Western Rajasthan, _____ are long earthen embankments built across hill slopes to capture runoff for agriculture.
[2 marks]
3.
State the standard unit used to measure turbidity in water quality testing.
[1 mark]
4.
Explain why groundwater in certain districts of West Bengal exhibits high levels of arsenic, and state the primary health hazard associated with its long-term consumption.
[3 marks]
5.
Reference — Diagram: AI visual
Identify the key components of a standard rooftop rainwater harvesting system from the labeled diagram.