Maharashtra Board Class 4 EVS Water for Every Household
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Q: What are some traditional materials used for storing water?
Traditional materials for storing water include brass, copper, and earthen pots.
Q: Why is it important to keep drinking water containers covered?
It’s important to keep drinking water containers covered to prevent dust and contaminants from entering the water.
Q: What misconception about drinking water becoming stale is addressed?
The misconception that drinking water becomes stale overnight is addressed, highlighting that it’s unnecessary to throw away water daily.
Q: What machines are used to lift water and what fuels do they run on?
Hand-pumps for borewells typically run on manual force. Pumps used for water towers and tankers usually run on electricity or diesel.
Q: How are water purification plants powered?
Water purification plants are powered by electricity or diesel.
Q: What can individuals do to prevent water wastage at home?
To prevent water wastage, individuals can turn off taps when not in use, reuse leftover water for other purposes like watering plants, and avoid running taps at full capacity.
Q: How can leftover water from daily activities be repurposed?
Leftover water from activities like washing vegetables or brushing teeth can be repurposed for watering plants.
Q: What are the key points to remember about water storage and usage?
Key points about water storage and usage include keeping containers covered, ensuring potable water for drinking, utilizing purification and distribution systems in cities, and being mindful of water wastage.
Multiple-Choice Questions
Q: Which of the following materials were traditionally used for storing water?
- a) Steel
- b) Plastic
- c) Brass and copper
- d) Aluminum
Answer: c) Brass and copper
Q: Why is it important to keep drinking water containers covered?
- a) To prevent evaporation
- b) To maintain water temperature
- c) To prevent dust and contaminants from entering
- d) To enhance water flavor
Answer: c) To prevent dust and contaminants from entering
Q: What fuels are commonly used to run pumps for lifting water?
- a) Solar energy
- b) Wind energy
- c) Electricity or diesel
- d) Natural gas
Answer: c) Electricity or diesel
Q: How are water purification plants typically powered?
- a) Solar energy
- b) Hydroelectric power
- c) Electricity or diesel
- d) Geothermal energy
Answer: c) Electricity or diesel
Q: What is suggested as a way to prevent water wastage at home?
- a) Running taps at full capacity
- b) Reusing leftover water for other purposes
- c) Washing vegetables and fruits with running water
- d) Leaving taps open while brushing teeth
Answer: b) Reusing leftover water for other purposes
Q: How can leftover water from washing vegetables or brushing teeth be repurposed?
- a) It cannot be reused
- b) Watering plants
- c) Flushing toilets
- d) Cleaning dishes
Answer: b) Watering plants
Q: What is emphasized as important regarding water usage in the chapter?
- a) Using water extravagantly
- b) Ensuring potable water for drinking
- c) Allowing tap water to become contaminated
- d) Storing water in open containers
Answer: b) Ensuring potable water for drinking
