Bihar TET · Environmental Studies (Paper I)
Sources, conservation, purification and water-borne diseases.
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Q1 · Water · EASY
In a village in Bihar, people collect rainwater in tanks and use it for drinking after filtering. What is the main benefit of rainwater harvesting in rural areas?
Q2 · Water · MEDIUM
A teacher shows four pictures of water sources to Class 4 students. Which of the following is the best source of drinking water after minimal treatment?
Q3 · Water · MEDIUM
During the rainy season in a Bihar village, many children fell sick with diarrhea after drinking water from the community well. What is the most likely reason for this outbreak?
Q4 · Water · HARD
A school in rural Bihar wants to demonstrate a simple water purification method to students using locally available materials. The teacher sets up a filter using layers of sand, gravel, and charcoal in a plastic bottle. Which statement best explains why this method can make water safer for drinking?
Q5 · Water · EASY
Which of the following is a natural source of fresh water?