SEBA Class 7 Science Important Chapter 16 Water: A precious Resource

SEBA Class 7 Science Important Chapter 16 Water: A precious Resource Solutions English Medium As Per New Syllabus to each chapter is provided in the list so that you can easily browse through different chapters SEBA Class 7 General Science Additional Solutions and select need one. SCERT Important Solutions For Class 7 General Science Download PDF. Important Notes for Class 7 Science SCERT.

SEBA Class 7 Science Important Chapter 16 Water: A precious Resource

Also, you can read the NCERT book online in these sections Solutions by Expert Teachers as per Central Board of Secondary Education (CBSE) Book guidelines. Assam SEBA Board Class 7 Science Additional Question Answer are part of All Subject Solutions. Here we have given SCERT Class 7 General Science Important Notes for All Chapters, You can practice these here.

Water: A precious Resource

Chapter: 16

IMPORTANT QUESTION ANSWER

A. Very Short Type Questions & Answers:

1. What is the main source of water for groundwater?

Ans: Groundwater is mainly replenished by rainwater and water from rivers and ponds seeping through the soil.

2. What are the three forms of water found on Earth?

Ans: Water is found in three forms: solid (ice, snow), liquid (rivers, lakes), and gas (water vapour).

3. Why is water considered a precious resource?

Ans: Water is limited, and only a small fraction of it is freshwater suitable for human consumption, making it a valuable and scarce resource.

4. What is the water table?

Ans: The water table is the upper limit of groundwater, which varies in depth depending on location and usage.

5. How does over-extraction of groundwater affect the water table?

Ans: Over-extraction depletes the groundwater faster than it is replenished, leading to a drop in the water table.

6. What is the importance of the water cycle?

Ans: The water cycle helps maintain the balance of water on Earth by recycling water through evaporation, condensation, and precipitation.

7. What role does infiltration play in maintaining groundwater levels?

Ans: Infiltration allows rainwater to seep into the ground and recharge the groundwater levels, maintaining the water table.

8. What is aquifer?

Ans: An aquifer is a layer of rock or soil that stores groundwater, and it can be tapped using wells or pumps.

9. What are the effects of water scarcity on plants?

Ans: Water scarcity affects plants by preventing them from absorbing nutrients, leading to wilting, dryness, and eventual death.

10. What is the significance of rainwater harvesting?

Ans: Rainwater harvesting helps conserve water, recharge groundwater, and reduce dependency on other water sources.

B. Fill in the Blanks:

1. The United Nations recommends a minimum of _______ litres of water per person per day for drinking, washing, cooking, and maintaining hygiene.

Ans: 50.

2. The water that is fit for human consumption is called _______ water.

Ans: Freshwater.

3. The process of water seeping into the ground is called _______.

Ans: Infiltration.

4. The water stored beneath the water table is called _______.

Ans: Groundwater.

5. The process of collecting and storing rainwater for future use is known as _______.

Ans: Rainwater harvesting.