Sources of water, water cycle, conservation, scarcity and water-borne diseases.
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Q1 · Water · EASY
Ramesh lives in a village where the only source of drinking water is a hand pump installed in the village square. During summer, the hand pump often runs dry. What is the MOST likely reason for this?
Q2 · Water · EASY
A teacher shows the class a diagram of the water cycle. She points to the process where water vapour in the air cools down and changes into tiny water droplets that form clouds. What is this process called?
Q3 · Water · MEDIUM
In a village in Uttar Pradesh, many children suffer from diarrhoea and stomach pain. A health worker finds that the village pond, which is used for drinking water, is contaminated with sewage. Which water-borne disease are the children MOST likely suffering from?
Q4 · Water · MEDIUM
A school in a city collects rainwater from its roof during the monsoon and stores it in an underground tank. Later, this water is used for watering plants and cleaning. This practice is an example of:
Q5 · Water · HARD
A diagram shows the water cycle with arrows indicating different processes. One arrow points from the ocean surface upward into the atmosphere, another arrow points from clouds to the ground, and a third arrow points from the ground back into the ocean through rivers. If the rate of evaporation from oceans decreases significantly due to a sudden drop in temperature, which of the following is the MOST likely long-term effect on the water cycle?