All questions of Drop By Drop for Class 3 Exam

Madho lives in Bajju- a small village in Rajasthan. It is hardly. a village ! All you see is sand all around. 

Water is crucial for our life as it is essential for the survival of all living beings, used in various daily activities like cooking and cleaning, and also for recreational purposes.

A 'tanka' is an underground tank used for storing rainwater. It is a traditional and sustainable method of water conservation widely used in India.

Key Points:
1. Definition of a Tanka
- A 'tanka' is a large underground tank made of cement or stone that is used to collect and store rainwater.
- It is an ancient water storage system that has been used for centuries in arid and semi-arid regions to ensure a steady supply of water during dry periods.

2. Purpose of a Tanka
- The primary purpose of a 'tanka' is to collect and store rainwater for various uses such as drinking, cooking, and irrigation.
- It helps in reducing water scarcity by conserving rainwater and making it available for use throughout the year.

3. Construction and Design
- A 'tanka' is typically built by excavating a large pit in the ground and lining it with impermeable materials like cement or stone to prevent water seepage.
- The tank is usually cylindrical in shape and has a small opening at the top for rainwater to enter.
- It may also have a filtration system to remove debris and contaminants from the collected water.

4. Collection and Storage of Rainwater
- Rainwater is collected from rooftops or catchment areas through gutters and pipes, which direct the water into the 'tanka'.
- The tank is designed to collect as much rainwater as possible during the rainy season.
- The stored water is preserved underground, maintaining a cool temperature and preventing evaporation.

5. Benefits of Tanka
- Tanka systems are eco-friendly and sustainable as they utilize a natural resource (rainwater) and reduce reliance on other sources of water.
- They help in water conservation and can contribute to the recharging of groundwater tables.
- Tanka water is often cleaner and purer compared to other sources, as it is free from chemicals and pollutants.
- Tanka systems also provide a reliable source of water during periods of drought or water scarcity.

In conclusion, a 'tanka' is an underground tank used for storing rainwater. It is an effective and sustainable method of water conservation that has been used for centuries in India.

Importance of Slanted Roof Design
A slanted roof, commonly seen in houses, serves several practical purposes, with rainwater drainage being one of the most critical.
Effective Rainwater Drainage
- A slanted roof allows rainwater to flow efficiently off the surface.
- The slope directs water towards gutters and downspouts, preventing accumulation on the roof.
- This design minimizes the risk of water leaks and damage to the roof structure.
Prevention of Water Damage
- Standing water can lead to mold and mildew growth, which can damage the roof and affect indoor air quality.
- A slanted roof helps to avoid these issues by ensuring that rainwater is quickly channeled away from the house.
Maintenance and Longevity
- The slanted design reduces the likelihood of debris buildup, such as leaves and branches, which can trap water.
- Regular maintenance becomes easier as the slope allows for better access and cleaning of gutters.
Thermal Regulation
- While the primary purpose is drainage, a slanted roof can also help in regulating temperature inside the house.
- The angle can create air circulation, helping to keep the home cooler.
In conclusion, the slanted roof is primarily designed to let rainwater flow into the tank, ensuring the structure remains protected and functional over time. Its design is essential for maintaining the integrity of the house while providing additional benefits like thermal regulation and ease of maintenance.

Collecting rainwater is a method of conserving water as it can be stored and used when there is a scarcity.

B

Can you thinks of ways of saving water

A

Rajasthan

All of these

Reusing water is an effective way to conserve it, which can help in preventing water scarcity.

Sonal and her community face a serious issue of water shortage, with water being available only for half an hour per day.

B

The phrase "every drop counts" emphasizes that even small actions to conserve water can contribute significantly to alleviating water scarcity.

A family, in human context, usually refers to a group of people related by blood, marriage, or adoption.

A lid is used on a 'tanka' to keep it covered and prevent dirt from entering it, thus maintaining the cleanliness of the water.

Water