Water : A Precious Resource Class 7 Science Part 2 Chapter 7 Questions and Answers.

Heading with Bright Purple Background

Free Solutions for The Assam State School Education Board (ASSEB) Class 7 Science Chapter 7 question Answer in English Medium

Water - A Precious Resource - Questions and Answers
Class 7 Science Part 2 Chapter 7
Assam State Education Board Syllabus 2025-2026 Covered

This chapter explains the importance of water, its availability, conservation, and sustainable use. Below are the important questions and answers from NCERT & SCERT Assam Class 7 Science Chapter 7 - Water: A Precious Resource, based on the Assam State Education Board syllabus for 2025-2026.

Get Free NCERT PDFs

If you want to download free PDFs of any chapter from any subject, click the link below and join our WhatsApp.

Join Our WhatsApp

Introduction to Water - A Precious Resource

Water is essential for life on Earth.
About 71% of Earth's surface is covered with water, but only a small fraction is available for human use.
Conservation of water is necessary to prevent scarcity.

Class 7 Science Question Answer – Part 2

Below are the chapters of Class 7 Science Part 2. Click on the chapter name to access the respective question-and-answer content:

Water : A Precious Resource

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.

(b) Water shortage is a problem faced only by people living in rural areas.

(c) Water from rivers is the only source of irrigation in the fields.

(d) Rain is the ultimate source of water.

(a) True

(b) False

(d) True

2. Explain how groundwater is recharged.

Ans:- Groundwater is recharged through a process called infiltration, where rainwater and water from other sources seep into the soil and percolate down to fill underground reservoirs or aquifers. Recharge occurs naturally through rainfall, rivers, lakes, and artificial recharge methods like rainwater harvesting.

3. There are ten tube wells in a lane of fifty houses. What could be the long-term impact on the water table?

Ans:- If ten tube wells are used continuously in a small area, the groundwater extraction will exceed the natural recharge rate. This can lead to:

(i) Lowering of the water table, making it harder to access groundwater.

(ii) Drying up of wells over time.

(iii) Soil subsidence, which can cause land sinking.

(iv) Depletion of local water resources, affecting nearby vegetation and agriculture.

4. You have been asked to maintain a garden. How will you minimize the use of water?

Ans:- To minimize water usage in a garden:

(i) Use drip irrigation to deliver water directly to plant roots.

(ii) Mulch the soil to reduce evaporation.

(iii) Water the plants early in the morning or late in the evening to reduce water loss.

(iv) Grow drought-resistant plants that require less water.

(v) Recycle water from household activities like washing vegetables.

5. Explain the factors responsible for the depletion of the water table.

Ans:- The major factors responsible for water table depletion are:

Overuse of groundwater – Excessive extraction for drinking, agriculture, and industries.
Deforestation – Reduces rainfall and water retention in soil.
Urbanization – More concrete surfaces reduce rainwater infiltration.
Population growth – Increased water demand leads to faster depletion.
Agricultural activities – Over-irrigation and water-intensive crops cause wastage.
Climate change – Irregular rainfall patterns and droughts reduce natural recharge.

6. Fill in the blanks with the appropriate answers:

(a) People obtain groundwater through wells and tube wells.
(b) Three forms of water are solid, liquid, and gas.
(c) The water-bearing layer of the earth is aquifer.
(d) The process of water seepage into the ground is called infiltration.

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

8. Choose the correct option. The total water in the world remains constant because:

(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:- (iv) Of the world remains Constant.

9. Make a sketch showing groundwater and the water table. Label it.

Class 7 Science Chapter 7 - Important Questions & Answers

Q1: Why is water called a precious resource?

Answer: Water is called a precious resource because it is essential for all living organisms, yet only a small fraction of Earth's water is fresh and usable for drinking, agriculture, and industrial purposes.

Q2: What are the different sources of freshwater?

Answer: The main sources of freshwater are:

Rainwater
Rivers and lakes
Groundwater (wells and springs)
Glaciers and ice caps

Q3: What is groundwater?

Answer: Groundwater is the water present beneath the Earth's surface in soil pores and rock formations. It is extracted using wells and hand pumps.

Q4: What is the water cycle?

Answer: The water cycle is the natural process through which water circulates between the Earth’s surface and the atmosphere. It involves evaporation, condensation, and precipitation.

Q5: What are the causes of water scarcity?

Answer: Water scarcity is caused by:

Overuse and wastage of water
Deforestation and reduced rainfall
Pollution of water bodies
Excessive groundwater extraction

Q6: How can we conserve water?

Answer: Water conservation can be done by:

Using water wisely at home and in agriculture.
Harvesting rainwater for future use.
Preventing water pollution.
Recycling and reusing water.

Q7: What is rainwater harvesting?

Answer: Rainwater harvesting is the process of collecting and storing rainwater for future use, especially for irrigation and groundwater recharge.

Q8: What are the effects of water pollution?

Answer: Water pollution causes:

Harm to aquatic life
Health hazards in humans
Contamination of drinking water
Soil degradation

Q9: How does deforestation affect the water cycle?

Answer: Deforestation reduces rainfall, leading to less groundwater recharge and increased chances of drought.

Q10: Why should we not waste water?

Answer: Water should not be wasted because it is a limited natural resource, essential for survival, agriculture, and industry.

FAQs on Water - A Precious Resource

Q1: What percentage of Earth's water is freshwater?

Answer: Only about 2.5% of Earth's water is freshwater, and most of it is locked in glaciers and ice caps.

Q2: How does groundwater get recharged?

Answer: Groundwater gets recharged through rainwater infiltration into the soil.

Q3: What are some methods to reduce water wastage at home?

Answer:

Fixing leaks
Using water-efficient appliances
Turning off taps while brushing teeth
Reusing water for gardening

Q4: What is the role of the government in water conservation?

Answer: The government implements water conservation projects, promotes rainwater harvesting, and regulates water usage to prevent wastage.

Q5: What are the impacts of water scarcity?

Answer: Water scarcity leads to droughts, reduced crop yield, health issues, and economic problems.

Why Choose Digital Pipal Academy?

Q: Is Digital Pipal Academy the No. 1 Educational Website for Assam Education for Free Learning?

Answer: Yes, Digital Pipal Academy provides high-quality, free educational resources for Assam Board students.

Q: What is the Best Website for Learning Class 7 in Assam?

Answer: Digital Pipal Academy is the best website for learning Class 7 in Assam. Visit www.pipalacademy.com for free study materials, NCERT & SCERT solutions, and expert guidance.

At Digital Pipal Academy, we provide:

✅ Detailed NCERT & SCERT solutions.
✅ Simple explanations with real-life applications.
✅ Exam-focused content for SEBA Board students.
✅ Free and accessible learning materials.
✅ Regular updates and latest syllabus coverage.

For more SEBA Class 7 Science solutions, visit Digital Pipal Academy and stay updated with our latest educational content.

📌 Related Posts:

About the Publisher

Lokesh Chandra Das is a passionate Teacher at Digital Pipal Academy. An expert in Chemistry, he creates engaging video lectures and offers insightful content to help students excel in their studies. Lokesh also specializes in typing and preparing educational material for the academy.

About the Content Reviewer

Hi! I'm Sudev Chandra Das (B.Sc. Mathematics), the Founder of Digital Pipal Academy. I've dedicated myself to guiding students toward better education. I believe, 'Success comes from preparation, hard work, and learning from failure.' Let’s embark on a journey of growth and digital excellence together!

Note for Users

If you find any incorrect answers, please notify us via Instagram at @pipalacademy or email us at info@pipalacademy.com. For content that may infringe copyright, kindly refrain from copying our content. Thank you for supporting Digital Pipal Academy!