Class 7 Exam > Class 7 Videos > Social Studies (SST) Class 7 > Composition of the Atmosphere
Composition of the Atmosphere Video Lecture | Social Studies (SST) Class 7
|
66 videos|336 docs|46 tests
|
FAQs on Composition of the Atmosphere Video Lecture - Social Studies (SST) Class 7
| 1. What are the main components of the Earth's atmosphere? |  |
Ans. The Earth's atmosphere is primarily composed of nitrogen (78%), oxygen (21%), argon (0.93%), carbon dioxide (0.04%), and trace amounts of other gases such as neon, helium, methane, krypton, and hydrogen.
| 2. How does the composition of the atmosphere affect climate change? | |
Ans. The composition of the atmosphere, particularly the levels of greenhouse gases like carbon dioxide and methane, plays a crucial role in climate change. Increased concentrations of these gases enhance the greenhouse effect, leading to global warming and resulting climatic changes.
| 3. Why is oxygen important in the atmosphere? | |
Ans. Oxygen is essential for the survival of most living organisms on Earth. It is required for respiration, a process in which organisms convert food into energy. Additionally, oxygen helps in the formation of ozone in the stratosphere, which protects life on Earth from harmful ultraviolet radiation.
| 4. What role does carbon dioxide play in the atmosphere? | |
Ans. Carbon dioxide (CO2) is a vital greenhouse gas that helps regulate the Earth's temperature by trapping heat in the atmosphere. It is also a key component of the carbon cycle, where it is absorbed by plants during photosynthesis and returned to the atmosphere through respiration and decay.
| 5. How do human activities affect the composition of the atmosphere? | |
Ans. Human activities, such as burning fossil fuels, deforestation, and industrial processes, significantly alter the composition of the atmosphere by increasing the concentration of greenhouse gases like carbon dioxide and methane. This leads to air pollution and contributes to climate change and global warming.
About this Video
|
4.70/5 Rating |
|
Nov 22, 2024 Last updated |
Video Description: Composition of the Atmosphere for Class 7 2024 is part of Social Studies (SST) Class 7 preparation.
The notes and questions for Composition of the Atmosphere have been prepared according to the Class 7 exam syllabus.
Information about Composition of the Atmosphere covers all important topics for Class 7 2024 Exam.
Find important definitions, questions, notes, meanings, examples, exercises and tests below for Composition of the Atmosphere.
Introduction of Composition of the Atmosphere in English is available as part of our Social Studies (SST) Class 7 for Class 7 & Composition of the Atmosphere in
Hindi for Social Studies (SST) Class 7 course. Download more important topics related with notes, lectures and mock test series for
Class 7 Exam by signing up for free.
Description
Video Lecture & Questions for Composition of the Atmosphere Video Lecture | Social Studies (SST) Class 7 - Class 7 full syllabus preparation | Free video for Class 7 exam to prepare for Social Studies (SST) Class 7.
Information about Composition of the Atmosphere
Here you can find the meaning of Composition of the Atmosphere defined & explained in the simplest way possible.
Besides explaining types of Composition of the Atmosphere theory, EduRev gives you an ample number of questions to practice Composition of the Atmosphere tests,
examples and also practice Class 7 tests.
|
66 videos|336 docs|46 tests
|
|
Explore Courses for Class 7 exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
Related Searches
Composition of the Atmosphere Video Lecture | Social Studies (SST) Class 7
,Free
,Objective type Questions
,ppt
,Extra Questions
,Sample Paper
,Semester Notes
,video lectures
,past year papers
,study material
,practice quizzes
,Composition of the Atmosphere Video Lecture | Social Studies (SST) Class 7
,Exam
,mock tests for examination
,Viva Questions
,MCQs
,shortcuts and tricks
,Composition of the Atmosphere Video Lecture | Social Studies (SST) Class 7
,Summary
,Important questions
,Previous Year Questions with Solutions
;
Study Composition of the Atmosphere on the App
Students of Class 7 can study Composition of the Atmosphere alongwith tests & analysis from the EduRev app,
which will help them while preparing for their exam. Apart from the Composition of the Atmosphere,
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 Composition of the Atmosphere is prepared as per the latest Class 7 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