CBSE Class 7 Social Science Geography Atmosphere Assignment

Read and download free pdf of CBSE Class 7 Social Science Geography Atmosphere Assignment. Get printable school Assignments for Class 7 Social Science. Class 7 students should practise questions and answers given here for Geography Atmosphere Social Science in Class 7 which will help them to strengthen their understanding of all important topics. Students should also download free pdf of Printable Worksheets for Class 7 Social Science prepared as per the latest books and syllabus issued by NCERT, CBSE, KVS and do problems daily to score better marks in tests and examinations

Assignment for Class 7 Social Science Geography Atmosphere

Class 7 Social Science students should refer to the following printable assignment in Pdf for Geography Atmosphere in Class 7. This test paper with questions and answers for Class 7 Social Science will be very useful for exams and help you to score good marks

Geography Atmosphere Class 7 Social Science Assignment

Atmosphere and Temperature
 
Give answer to the following questions approximately in 1- 15 words
 
Question. What do you understand by the Atmosphere?
Answer: The earth is surrounded by a cover of air. This cover is known as Atmosphere.
 
Question. Why we study Atmosphere in Geography?
Answer: Because Atmosphere is responsible for creating and maintaining of plants and animal life on the Earth.
 
Question. Name the layers of Atmosphere.
Answer: 1.Troposphere    2. Stratosphere
3. Mesosphere            4. Thermosphere (Ionosphere+ Exosphere
7th SS Eng. Medium 2021-22 ( Solved Whole Year). 3
 
Question. Which is called Tropopause limit?
Answer: Tropopause limit is the boundary between Troposphere and Stratosphere.
 
Question. What do you understand by Exosphere?
Answer: The outermost layer of Atmosphere is called Exosphere. It has gases like Hydrogen and Helium.
 
Question. What are the elements other than the gases present in the Atmosphere?
Answer: Water vapours and dust particles.
 
Question. What is air pollution?
Answer: Foreign substances in the Atmosphere make air unhealthy. This is called air pollution. Smoke, dust particles and pesticides are the main sources of air pollution.
 
Question. What is temperature and what are the units of measuring the temperature?
Answer: The heat of the air and the internal heat of a good or living being, is called temperature. It is measured in Celsius and Fahrenheit.
 
Question. Why is the temperature very high on the Equator?
Answer: The rays of the sun fall directly on the Equator. Therefore the temperature is high over there.
 
 
Give answers to the following questions in about 50- 60 words
 
Question. What are the main factors that cause air pollution?
Answer: Solid pollutants: -
1. Volcanoes pollute the air by dust particles.
2. Smoke from the burning of fuels release carbon particles into the air.
Gaseous pollutants:- 1. Exhaust materials of automobiles pollute the air.
2. Smog causes air pollution.
 
Question. What we call the lower layer of the atmosphere?
Answer: 
1. The lowest layer of the atmosphere is called Troposphere. Its average height is 12 Km.
2. The entire weather phenomenon like rainfall, storm, clouds etc. takes place only in this layer.
3. The 75% of all the air, is present in this layer.
 
Question. Write the ratio of main gases in the air.
Answer:
1.Nitrogen- 78.03%, 2. Oxygen- 20.99%
3. Argon- 0.94% 4. Carbon dioxide- 0.03%
5. Hydrogen- 0.01% 6. Dust particles and water vapours.
 
Question. In which layer of the Atmosphere the Ozone gas exists? Why is it so important?
Answer: Ozone gas exists in Stratosphere layer.it absorbs the Ultraviolet rays of the Sun, which are very harmful to the life of living beings on the earth.
 
 
Fill in the blanks :
 
1. As we go up to the hills the temperature decreases.
 
2. The main sources of the temperature are Sun and internal part of the Earth.
 
3. The Ozone gas absorbs Ultraviolet rays.
 
4. The electrically charged particles are found in Thermosphere or Ionosphere layer.
 
5. The wireless communication system works under Radio waves.
 
6. Nitrogen gas is found in maximum quantity in atmosphere
 

Social Science (Geography)

Q1. Imagine a day without the atmosphere and describe at least ten possible consequences.

Q2. Find out about the greenhouse effects- its causes and dangers.

Q3. Give reasons:

a) The atmosphere is of great significance.

b) All jet planes fly in stratosphere.

c) Ionosphere help in radio communication.

PROJECT WORK:

In recent years, the ozone layer has been destroyed at certain places causing holes in it. Find out the causes of depletion of the ozone layer and its effect on us.

Our Environment Chapter 02 Inside Our Earth
CBSE Class 7 Social Science Geography Inside Our Earth Assignment
Our Environment Chapter 03 Our Changing Earth
CBSE Class 7 Social Science Geography Our Changing earth Assignment
Our Environment Chapter 06 Natural Vegetation and Wild Life
CBSE Class 7 Social Science Geography Natural Vegetation And Wild Life Assignment
Our Environment Chapter 09 Life in the Deserts
CBSE Class 7 Social Science Life in deserts Assignment
Our Pasts II Chapter 01 Tracing Changes Through a Thousand Years
CBSE Class 7 Social Science History Tracking Changes Through A Thousand Years Assignment
Our Pasts II Chapter 02 New Kings and Kingdoms
CBSE Class 7 Social Science History New Kings and Kingdoms Assignment
Our Pasts II Chapter 03 The Delhi Sultanate
CBSE Class 7 Social Science History The Delhi Sultanate Assignment
Our Pasts II Chapter 04 The Mughal Empire
CBSE Class 7 Social Science History the Mughal Empire Assignment
Our Pasts II Chapter 05 Rulers And Buildings
CBSE Class 7 Social Science History Ruler and Buildings Assignment
Our Pasts II Chapter 06 Towns Traders And Craftspersons
CBSE Class 7 Social Science Tower Traders and Crafts Persons Assignment
Our Pasts II Chapter 07 Tribes, Nomads And Settled Communities
CBSE Class 7 Social Science History Tribes Nomads And Settled Communities Assignment
Our Pasts II Chapter 08 Devotional Paths To The Divine
CBSE Class 7 Social Science History Devotional Paths To The Divine Assignment
Our Pasts II Chapter 09 The Making Of Regional Cultures
CBSE Class 7 Social Science The Flowering Of Regional Cultures Assignment
Our Pasts II Chapter 10 Eighteenth Century Political Formations
CBSE Class 7 Social Science History Eighteenth Century Political Formations Assignment
Social and Political Life-II Chapter 02 Role of the Government in Health
CBSE Class 7 Social Science Role of the State Government Assignment
Social and Political Life-II Chapter 03 How the State Government Works
CBSE Class 7 Social Science State Government Executive Assignment
Social and Political Life-II Chapter 06 Understanding Media
CBSE Class 7 Social Science The Media and democracy Assignment
Social and Political Life-II Chapter 07 Markets Around Us
CBSE Class 7 Social Science Market around Us Assignment

CBSE Class 7 Social Science Geography Atmosphere Assignment

We hope you liked the above assignment for Geography Atmosphere which has been designed as per the latest syllabus for Class 7 Social Science released by CBSE. Students of Class 7 should download and practice the above Assignments for Class 7 Social Science regularly. We have provided all types of questions like MCQs, short answer questions, objective questions and long answer questions in the Class 7 Social Science practice sheet in Pdf. All questions have been designed for Social Science by looking into the pattern of problems asked in previous year examinations. You can download all Revision notes for Class 7 Social Science also absolutely free of cost. Lot of MCQ questions for Class 7 Social Science have also been given in the worksheets and assignments for regular use. All study material for Class 7 Social Science students have been given on studiestoday. We have also provided lot of Worksheets for Class 7 Social Science which you can use to further make your self stronger in Social Science.

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How many topics are covered in Geography Atmosphere Social Science assignments for Class 7

All topics given in Geography Atmosphere Social Science Class 7 Book for the current academic year have been covered in the given assignment

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Are these assignments for Geography Atmosphere Class 7 Social Science designed as per CBSE curriculum?

Latest syllabus issued for current academic year by CBSE has been used to design assignments for Geography Atmosphere Class 7

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