Grade 4 Exam > Grade 4 Videos > Social Studies for Grade 4 > Our Water Resources
Our Water Resources Video Lecture | Social Studies for Grade 4
|
41 videos|30 docs|23 tests
|
FAQs on Our Water Resources Video Lecture - Social Studies for Grade 4
| 1. What are the major sources of water pollution? |  |
Ans. The major sources of water pollution include industrial waste, sewage and wastewater, agricultural runoff, and oil spills. These sources introduce various pollutants such as chemicals, heavy metals, pathogens, and nutrients into water bodies, which can have detrimental effects on aquatic ecosystems and human health.
| 2. How does water pollution affect human health? | |
Ans. Water pollution can have significant impacts on human health. Contaminated water can lead to waterborne diseases such as cholera, dysentery, and typhoid fever. It can also cause long-term health problems such as organ damage, developmental issues in children, and an increased risk of cancer. It is important to ensure access to clean and safe drinking water to prevent these health risks.
| 3. What are the consequences of over-extraction of groundwater? | |
Ans. Over-extraction of groundwater can have several consequences. It can lead to the depletion of aquifers, causing a decline in water levels and the drying up of wells. This can result in water scarcity, especially in arid and semi-arid regions. Over-extraction can also lead to land subsidence, as the emptying of aquifers causes the ground to sink. This can damage infrastructure, disrupt ecosystems, and further exacerbate water scarcity.
| 4. How does climate change impact water resources? | |
Ans. Climate change has significant implications for water resources. It can alter precipitation patterns, leading to changes in the availability and distribution of water. This can result in more frequent and severe droughts, floods, and storms. Rising temperatures can increase evaporation rates, reducing water availability in lakes, rivers, and reservoirs. Additionally, melting glaciers and ice caps contribute to rising sea levels, posing threats to coastal freshwater sources.
| 5. What are the main strategies for water conservation? | |
Ans. There are several strategies for water conservation. These include implementing efficient irrigation techniques in agriculture, promoting water-efficient appliances and fixtures in households, reducing water losses in distribution systems, and implementing policies for water pricing and incentives. Additionally, raising awareness about the importance of water conservation and promoting behavioral changes can also contribute to saving water resources.
Related Exams
About this Video
|
1K Views |
|
4.63/5 Rating |
|
Nov 22, 2024 Last updated |
Video Description: Our Water Resources for Grade 4 2024 is part of Social Studies for Grade 4 preparation.
The notes and questions for Our Water Resources have been prepared according to the Grade 4 exam syllabus.
Information about Our Water Resources covers all important topics for Grade 4 2024 Exam.
Find important definitions, questions, notes, meanings, examples, exercises and tests below for Our Water Resources.
Introduction of Our Water Resources in English is available as part of our Social Studies for Grade 4 for Grade 4 & Our Water Resources in
Hindi for Social Studies for Grade 4 course. Download more important topics related with notes, lectures and mock test series for
Grade 4 Exam by signing up for free.
Description
Video Lecture & Questions for Our Water Resources Video Lecture | Social Studies for Grade 4 - Grade 4 full syllabus preparation | Free video for Grade 4 exam to prepare for Social Studies for Grade 4.
Information about Our Water Resources
Here you can find the meaning of Our Water Resources defined & explained in the simplest way possible.
Besides explaining types of Our Water Resources theory, EduRev gives you an ample number of questions to practice Our Water Resources tests,
examples and also practice Grade 4 tests.
|
41 videos|30 docs|23 tests
|
Video Timeline
|
Explore Courses for Grade 4 exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
Related Searches
Sample Paper
,Summary
,Our Water Resources Video Lecture | Social Studies for Grade 4
,Free
,video lectures
,Viva Questions
,past year papers
,Objective type Questions
,study material
,Extra Questions
,shortcuts and tricks
,Semester Notes
,ppt
,practice quizzes
,Our Water Resources Video Lecture | Social Studies for Grade 4
,mock tests for examination
,Important questions
,MCQs
,Our Water Resources Video Lecture | Social Studies for Grade 4
,Previous Year Questions with Solutions
,Exam
;
Study Our Water Resources on the App
Students of Grade 4 can study Our Water Resources alongwith tests & analysis from the EduRev app,
which will help them while preparing for their exam. Apart from the Our Water Resources,
students can also utilize the EduRev App for other study materials such as previous year question papers, syllabus, important questions, etc.
The EduRev App will make your learning easier as you can access it from anywhere you want.
The content of Our Water Resources is prepared as per the latest Grade 4 syllabus.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup