Water: A Precious Resource NCERT Solutions – Class 7 Science
NCERT Class 7 Science Chapter 16 discusses groundwater and other vital topics like the water table and its depletion in an interesting and engaging manner. While studying the chapter, students learn a valuable lesson about conserving resources for the future. NCERT Solutions for Class 7 Science Chapter 16 by Extramarks make this challenging topic easy to understand so that students can enjoy the process of learning and retain the key points in the process.
NCERT Solutions for Class 7 Science Chapter 16 by Extramarks covers CBSE board-compliant answers to questions in the textbook. In addition, NCERT solutions for Class 7 Science Chapter 16 can be accessed by students at any time from the Extramarks’ website and app.
NCERT Solutions for Class 7 Science Chapter 16
Access NCERT Solutions for Science Chapter 16 – Water: A Precious Resource
NCERT Solutions of Class 7 Science Chapter 16
With NCERT Solutions of Class 7 Science Chapter 16 by Extramarks, students will get an idea about the current water scenario and how it can be changed for the better.
As the answers in NCERT Solutions of Class 7 Science Chapter 16 are precise, they will help students easily understand the concepts. Students can refer to them during their exam preparations, revisions, and even for help with their assignments.
NCERT Solutions Class 7 Chapter 16
Water: A Precious Resource is an important chapter in the Class 7 Science textbook of NCERT. The chapter starts with the quote signifying that there is no future without water. It creates awareness among the students about the amount of water currently available to us, different forms of water, the importance of groundwater, depletion of groundwater, and its distribution and management. Towards the end, it explains how the plants are affected by water scarcity and how you can make a difference. . The lessons and awareness students get through this chapter is critical for understanding the environment and learning how we can conserve it.
Water Class 7 Science chapter is very vast and important, the learning source of the same should be authentic and reliable. That’s why Extramarks’ NCERT Solutions for Class 7 Science Chapter 16 are significant. These not only provide the necessary study material but also make learning a lot simpler and more engaging. The solutions have easy answers to complicated questions from topics like mismanagement of water resources, and the importance of rain harvesting and drip irrigation, referring to this Solution paves way for a better understanding and provides authentic and concise answers for the students.
To ace their learning preparation, a student can access this solution on Extramarks’ app or website.
NCERT Class 7 Science Chapter 16 – Marks Distribution
The marks distribution must be clearly understood when planning for studies. Water: A Precious Resource, the NCERT Class 7 Science Chapter 16, is quite intriguing in terms of the distribution of marks too. You may get questions of four, six, and eight marks from this chapter in tests and exams. Here are some of the important topics from the chapter:
– Availability of Water
– Forms of Water
– The Importance of Groundwater as a Source of Water
– Depletion of Water Table
– Water Distribution
– Management of Water
– What Role Can You Play?
– Effects of Water Scarcity on Plants
NCERT Solutions for Class 7 Science chapter 16 by Extramarks help you dive deep into each of these topics to understand them better. This assists you to answer all the questions related to this chapter asked in the exams. If you have conceptual clarity , you can easily answer all the questions, and you will find significant improvement in your overall exam score. The idea is to keep your answers simple and relevant besides providing precise information as per the question.
Benefits of NCERT Solutions Class 7 Science Chapter 16
Studying Class 7 Science Chapter 16 can turn out to be quite beneficial for you in the short as well as long run. The information you receive in this chapter is not just limited to your Class 7 studies. This information can be a foundation of so much more that you might learn as you walk further on the path of your educational journey. Here are some of the key benefits of NCERT Solutions for Class 7 Science Chapter 16:
- The solutions are made by subject experts after engaging in R&D.
- The solutions have the most interesting and simple answers to challenging and tricky questions.
- The solutions are made as per the latest textbook and CBSE guidelines.
- The solutions are highly accurate, authentic and reliable.
Q.1 Mark ‘T’ if the statement is true and ‘F’ if it is false:
(a) The freshwater stored in the ground is much more than that present in the rivers and lakes of the world. (T/F)
(b) Water shortage is a problem faced only by people living in rural areas. (T/F)
(c) Water from rivers is the only source for irrigation in the fields. (T/F)
(d) Rain is the ultimate source of water. (T/F)
Ans-
(a) True
(b) False
(c) False
(d) True
Q.2 Explain how groundwater is recharged?
Ans-
Groundwater is recharged by the seepage of water through cracks and gaps present in the layers of soil from rivers, ponds, streams and rainwater. There are small crevices and empty spaces present between the rocks through which rainwater infiltrates, reaches to the water table and replenishes it.
Q.3 There are ten tubewells in a lane of fifty houses. What could be the long term impact on the water table?
Ans-
Tubewells are used to draw underground freshwater to the surface to meet growing demands of water for domestic, industrial and agricultural consumption. If ten tubewells are installed in a lane of fifty houses, the ground water is drawn out at a faster rate that results in rapid depletion of water table in that area.
Q.4 You have been asked to maintain a garden. How will you minimise the use of water?
Ans-
The usage of water required for maintaining a garden can be minimised by using drip irrigation. In this technique, a network of narrow pipes is used for delivering water directly at the base of the plant. This technique prevents wastage of water in watering the garden plants as well as in irrigating the agricultural fields.
Q.5 Explain the factors responsible for the depletion of water table.
Ans-
The factors responsible for the depletion of water table are as follows:
1. Increasing requirements of water due to ever rising population, rapid industrial growth and agricultural activities
2. Decreasing effective area for seepage of water due to expansion of road networks, townships and cities
3. Large scale deforestation
4. Wastage of water
5. Increased dependence on ground water as a source of freshwater due to pollution of rivers and ponds
Q.6 Fill in the blanks with the appropriate answers:
(a) People obtain groundwater through________ and ________.
(b) Three forms of water are ________, ________ and ________.
(c) The water bearing layer of the earth is ________.
(d) The process of water seepage into the ground is called ________.
Ans-
(a) tube wells, hand pumps
(b) ice, water, vapour
(c) Aquifer
(d) Infiltration
Q.7 Which one of the following is not responsible for water shortage?
(i) Rapid growth of industries
(ii) Increasing population
(iii) Heavy rainfall
(iv) Mismanagement of water resources
Ans-
(iii) Heavy rainfall
Q.8 Choose the correct option. The total water
(i) in the lakes and rivers of the world remains constant.
(ii) under the ground remains constant.
(iii) in the seas and oceans of the world remains constant.
(iv) of the world remains constant.
Ans-
The total water (iv) of the world remains constant.
Q.9 Make a sketch showing groundwater and water table.Label it.
Ans-
Following sketch shows groundwater and water table:
FAQs (Frequently Asked Questions)
1. Can I skip NCERT Class 7 Science Chapter 16?
- NCERT Class 7 Science Chapter 16 is one of those chapters that can help you score well even in theoretical and practical subjects like Science. All you need to do is get the concepts right and you will be all set!
- The chapter is a great insight for real-life topics like water management and uncomplicated methods that can prevent water scarcity in a particular area.
For simple, efficient and in-depth learning of this chapter, refer to Extramarks’ NCERT solutions Class 7 Science Chapter 16.
2. What are the topics that I will study in NCERT Class 7 Science Chapter 16?
NCERT Solutions Class 7 Science Chapter 16 Water: A Precious Resource gives students an in-depth understanding of the water, why it is a precious resource, to conserve biodiversity and the environment. . The chapter explains the current water availability, forms of water, sources of water and how the water is getting depleted ways to save water.
Class 7 Science Chapter 16 also throws light on the management of water and its methods like drip irrigation and rainwater harvesting. In this chapter, you are also made aware of the challenges related to water and its impact on the globe. i. Towards the end, you learn about what steps you can take in order to improve the situation of water scarcity. In General, it creates awareness in the chapter and provides a lot to ponder about.
3. Why does the title of the chapter call water a ‘precious’ resource?
The reason water is stated as a precious resource in NCERT Class 7 Science Chapter 16 is that there is no life possible on earth without water. It is probably the most important part of our ecosystem. This chapter talks about the importance of water and its conservation. The water scarcity and unequal distribution of water are a matter of concern for the whole world and human behaviour has a role to play in it. Water Class 7 Science chapter educates us about our role in saving this precious resource and making our planet a better place to live in.
4. What makes NCERT Solutions for Class 7 Science Chapter 16 by Extramarks the best study material?
The following reasons make NCERT Solutions for Class 7 Science Chapter 16 by Extramarks stand out from the other solutions:
- NCERT Solutions for Class 7 Science Chapter 16 by Extramarks are prepared by subject experts.
- All the answers to textual questions are explained in a simple to understand yet comprehensive manner. . These answers are also in line with NCERT examination guidelines.
- The solution is so self-explanatory that Class 7 students can study it by themselves without the guidance of teachers or parents.
