It is a very thin layer and it merges with the space.• This layer protects us from the harmful radiation.• Temperature is very high. View Answer. GK Quiz General Knowledge GK Questions Answers Class 7. Such fast-moving aircraft and air buses. (b) Ozone layer protects us from harmful ultraviolet rays of the sun. When a cold air mass is being replaced by a warm air mass, this transition zone is known as a warm front. Name the unit used for measuring air pressure. Troposphere:• This layer is next to earth surface. The majority of the atmosphere is made up of nitrogen (78%) and oxygen (21%). Answer: Seasonal; High pressure is associated with _____. (a) Carbondioxide. Why is atmosphere important for us?Ans. View Answer. and water vapours & dust particles. Train, motor, tram, ship, scooter etc. This portal is designed to support Students and Teachers of Central Board of Secondary Education. Following are the main cause of air pollution:(a) Rapid industrial growth. (c) Increase in numbers of automobiles. Assign HW. Browse Extramarks for all ICSE solved papers Toll Free No. CBSE recommends NCERT books and most of the questions in CBSE exam are asked from NCERT textbooks. Worksheet on needs of air contains the various types of questions on presence of air, uses of air, properties of air, why air is essential for all living things to stay alive and why air is necessary for burning. Draw a diagram also.Ans. Students can also use the CBSE Class 7 Geography Chapter 4 Air Important Questions to prepare most competently for the exam. 22 January b. 2. Permanent or Planetary Winds: These winds blow constantly throughout the year in a particular direction. Hence, this layer is ideal for the air transportation. Oxygen. Q4. Q1. Olympiads: There are several Olympiads organised by the Science Olympiad Foundation (SOF) such as IMO, NCO, NSO and ISO. What is the composition of the air? We have Provided Air Class 7 Geography MCQs Questions with Answers to help students understand the concept very well. done clear. Class 7 - Get Science study materials, notes and revision quizzes. Q(i).What is atmosphere? Answer:(c) Ozone. Answer. Types of precipitation: Rainfall, Snowfall, Hail, Sleet, etc. How do all living beings depend on the atmosphere for their survival? Helped alot!!!! Share practice link . These winds are broadly classified as: -(a) Trade Winds(b) Westerlies(c) Polar Easterlies. Q5. Following are the factors affecting temperature of any place:(a) Latitude or Distance From Equator. • This layer is next to stratosphere and it extends from 50 kms to 80 kms. What do you mean by precipitation? Define the term atmosphere. • This layer is next to troposphere and it extends from 15 kms to 50 kms. Answer: The thick blanket of air (mixture of gases) around the earth is called atmosphere. BAL BHARATI PUBLIC SCHOOL GANGA RAM HOSPITAL MARG Light gases like hydrogen and helium float into space from here. MCQ Type Extra Questions (1) Which type of rainfall is occurred due to the presence of hill or a mountain in the path the winds ? These clouds produce sudden and heavy rainfall. Answer: Blanket of air surrounding the earth is known as the atmosphere. The questions and the detailed answers to the questions will help you to comprehend the concepts and ideas given in CBSE class 6 Science examination. a. A difference in the air pressure defines the direction of wind flow and accordingly, brings changes in the weather conditions. CBSE Class 6th, 7th, 8th, 9th, & 10th | Help Guide | Solved Exercises | MCQs | Questions & Answers | Sample Papers. In the atmosphere, nitrogen and oxygen are found in plentiful ratio. Answer: Blanket of air surrounding the earth is known as the atmosphere. Q1. and water vapours & dust particles. Save. A huge blanket of air by which our earth is surrounded is called atmosphere. Stratosphere:• This layer is next to troposphere and it extends from 15 kms to 50 kms.• This layer is free from weather changes, cloud formation and dust particles. Describe the structure of the atmosphere. Carbon monoxide . Temperature increase with increase in height. This makes the leeward side of the mountain have a dry climate. (iv) What is weather? 7th grade . Ans. A. • Temperature is very high. But since cool air can't hold as much moisture as warm air, it begins to precipitate on the windward side (the side of mountain that is facing the prevailing winds). To score good marks in the examinations, students are advised to study NCERT solution for class 6 science. Carbon dioxide. Home Kids Primary Secondary. (a) Planets (b) Moon (c) Sun . CBSE NCERT Solutions for Class 7 Social Science Geography Chapter 4 Air is given here updated for session 2020-2021. How do all living beings depend on the atmosphere for their survival? Describe each giving examples.Ans. Class 7 Social Science MCQs Questions with Answers Chapter Wise PDF Download. This is your solution of NCERT Textbook - Air Class 7 Notes | EduRev search giving you solved answers for the same. Offline apps are very useful in case your internet is weak or there is no internet. Ch10 Life in deserts (NCERT Chapter Answers) Quiz on Sobriquets PSA Quiz (2016) Class 7 SA2 - Social Studies Sample Question Paper (2016-17) Class 7 SA2 - Social Studies - Sample Question Paper (Set2) (2016-17) Class 7 Social Science - Annual Question Paper (2018-19) Which of the following gases is not present in air? The methods used by us comprise means to self-analyse one’s preparation. MCQ Questions for Class 7 Social Science Geography : The Earth: … This is the Sample Lesson Plan of Social Science For Class 7 teachers of Geography stream on the structure of atmosphere topic For More Lesson Plans Click Here. Q4. (i) What is the atmosphere? The majority of the atmosphere is made up of nitrogen (78%) and oxygen (21%). Q3. 3. Check the answers of worksheet on air, water and weather: Answers: I. What is the main cause of air pollution?Ans: Any change in the composition of air is termed as "Air Pollution". Answer: The air that we breathe is a mixture of many gases like oxygen, nitrogen, carbon dioxide, argon etc. Air Extra Questions Fill in the blanks: Meteorites burn up in the _____. (d) Burning of solid waste. Pages. Class 7 - Geography - NCERT Chapter 4 Solution Q1: What is atmosphere? Download free printable worksheets Social Science pdf of CBSE and kendriya vidyalaya Schools as per latest syllabus in pdf, CBSE Class 7 Geography Worksheet (4) - Air - Practice worksheets for CBSE students. 5. (b) Mistral: These are very cold winds, which blow down from the Alps over France. (e) Fire, etc. (b) Drizzle: Light rainfall in the form of very tiny drop of water is called "Drizzle". 0% average accuracy. Define: (a) Breeze (b) DrizzleAns:(a) Breeze: These are local winds which blow only during a particular period of the day or year in a small area. Q3: Why you feel suffocation in a closed room, where some material is burning? 4. Geography Chapter 4 Air Class 7 Inside 5 Marks, 3 marks, 2 Marks & And 1 Marks Important Questions and Answers. This decline is known as normal lapse rate. Importance of 7th Grade Science Questions Answers. (a) Trade Winds: These winds blow from Sub-Tropical high pressure belt towards Equatorial low pressure belt. Q1. • Where temperature is high the air gets heated and rises which creates a low-pressure area. NCERT class 7- Geography question and answer (part-2) Hello friends in this blog we are going to read questions of class 7 geography, before we start I will remind you to follow this blog with your e-mail for latest updates. Read the concept to answers the questions on needs of air. Following are the factors affecting temperature of any place: (b) Altitude or Height Above The Sea Level. Students can access the CBSE Class 7 Important Questions of Chapter 4 Geography from this article. Describe the different types of rainfall, Support your answer with appropriate diagram.Ans. → Horizontally the distribution of air pressure is influenced by temperature of air at a given place. Define the term atmosphere. (e) It protects us from falling meteors and other cosmic dusts. (d) It acts as a blanket which prevents the earth from becoming too hot during day and too cold during night. D. Sulfur dioxide. Science - Class 7 / Grade 7 (Chapter 01-10) Chapter 8 - Winds, Storms and Cyclones - 1 NCERT Solutions for Class 7 Science PDF free download, NCERT Solutions for Class 7 Science Chapter 8 Winds, Storms and Cyclones, to Study online or download free in PDF form. This is because the prevailing winds come up and the cool air tries to hold that much moisture. Answer: Tribhuwan kumar 03 May, 2020 Very good answer. Students can Download EVS Chapter 6 Air Questions and Answers, Summary, Notes Pdf, KSEEB Solutions for Class 5 EVS helps you to revise the complete Karnataka State Board Syllabus and score more marks in your examinations. thanks nirmancare. 1. With the help of science, news can be delivered from one place to another at an early location at a quick time. (b) Ozone layer protects us from harmful ultraviolet rays of the sun. Question 1. What is the difference between Air Guard and Air Force? Dec 10, 2020 - Chapter Notes - Chapter 4: Air, SST, Class 7 | EduRev Notes is made by best teachers of Class 7. Seasonal or Periodic Winds: These winds change their direction in different seasons. Very Short Answer Questions. Due to presence of these ions, this layer is also known as ionosphere. Class 7 Geography Chapter 4 Question Answers. What are the factors affecting temperature of any place?Ans. What is the water vapour present in the air called? Fill in the blanks : (a) Argon is the most abundant inert gas present in air. Air Questions & Answers. The dry air moves on to the leeward side (the side of a mountain that is not facing prevailing winds) and stays there, usually causing deserts to form. Major gases present are:(i) Nitrogen – 78%(ii) Oxygen – 21%(iii) Argon - .93%(iv) Carbon Dioxide – 0.03%Other Gases – 0.04% (like – helium, hydrogen, methane, ozone, etc. She took two bowls of sand and water and placed them in sunlight. This makes the leeward side of the mountain have a dry climate. Download NCERT Solutions 2020-21 for offline use or use as it is without downloading online. Ans: The process in which water vapour falls on the surface of the earth is known as precipitation. Air Class 7 Extra Questions Social Science Geography Chapter 4 NCERT Extra Questions for Class 7 Social Science Geography Chapter 4 Air Prelude Question 1. Q3. They burn when coming in contact with the atmosphere. Extra Questions Fill in the blanks: ... Answer: Mesosphere; The average weather condition of a place over a longer period of time is called _____ Answer: Climate _____ winds change their direction in different seasons. Q5. 1. Question 1. Karnataka State Board Class 5 EVS Chapter 6 Air Class 5 EVS Air Text Book Questions and Answers. Following are the main cause of air pollution: (b) Excessive burning of the fossil fuels. (a) Air (b) Plants (c) Water (d) None of These Answer: Plants. (a) Convectional Rainfall (b) Cyclone rain (c) Releif rain (d) none of the above. NCERT Solutions For Class 7 Geography Social Science Chapter 4 Air. This quiz is incomplete! How is it important to us? Do check out the sample questions of NCERT Textbook - Air Class 7 Notes | EduRev for UPSC, the answers and examples explain the meaning of chapter in the best manner. Importance of atmosphere and various gases present in it are: (a) Life giving gases like oxygen for breathing of animal kingdom and carbon dioxide is inhaled by plant kingdom. (f) Presence of gases, dust particles and water vapours lend colours to sky. In the United States, cyclones often are called tornadoes.An anticyclone system has characteristics opposite to that of a cyclone. (c) Tiny dust particles help in the formation of the rain droplets. What is a cyclone? Class VII: Chapter 4 (Air) Question & Answer. These solutions for Air are extremely popular among Class 7 students for Social science Air Solutions come handy for quickly completing your homework and preparing for exams. What do you mean by precipitation? What do you mean by wind? An anticyclone system has characteristics opposite to that of a cyclone. • The boundary separating troposphere and stratosphere is known as tropopause. • Temperature decreases at the rate of 1 degree Celsius from every 165 mtrs of ascent. Describe each giving examples. The other name for relief rain is orographic rainfall. 3. Air, CBSE Geography Class 7 NCERT Solutions. Rainfall can be classified into three types:1. • The air pressure is highest at sea level and decreases with height. Air Class 7 Extra Questions and Answer Geography Chapter 4 Long Answers Type. (c) NO 2 and CO are the most common air pollutants. Geography Chapter 4 Air Class 7 Inside 5 Marks, 3 marks, 2 Marks & And 1 Marks Important Questions and Answers. Ans: Barometer is the unit used for measuring air pressure. Which gas makes up the largest part of air? • Average height: 13 kms at poles and 18 kms over the equator. Air, CBSE Geography Class 7 Chapter Wise Solved Q&A. Jasmine conducted an experiment. Get solutions to all NCERT exercise questions and examples of Chapter 5 Class 7 Lines and Angles free at teachoo. These winds bring short time changes in the weather conditions over a smaller area. (b) Altitude or Height Above The Sea Level(c) Distance From The Sea(d) Prevailing Winds and Ocean Currents(e) Slope of Land. Q2. • This layer is free from weather changes, cloud formation and dust particles. Students can score well by going through these important questions of Chapter 8 as it consists of all important topics related to Pollution of Air … 13 minutes ago by. Relief Rainfall: Relief rain occurs when warm air is forced to cool when it rises over a hill or mountain and then condenses. Which layer of the atmosphere enables wireless communications?Ans: Thermosphere or Ionosphere is the layer of the atmosphere enables wireless communications. These important questions of Class 8 Science are best for revision purpose and also provide students to get an idea of the types of questions asked in exam. • Temperature again drops in this layer and can reach upto -100 degree Celsius at the upper boundary layer. Multiple Choice Questions (MCQ) for CBSE Class 7 all subjects on Topperlearning. Cyclones can produce cloudy weather and broad areas of rain and even snow. What is a cyclone? C. Oxides of nitrogen. She noted the temperatures again after one hour and made the following observations. Describe the composition of the atmosphere. Answer: Seasonal; High pressure is associated with _____. How is it important to us?Ans: The weight of air on the earth's surface is referred to as "Atmospheric Pressure". Here you can get Class 8 Important Questions Science based on NCERT Text book for Class VIII. It extends upto 500 kms. These MCQ's are extremely critical for all CBSE students to score better marks. Underground water is the main source of freshwater on the earth's surface. Importance of atmosphere and various gases present in it are:(a) Life giving gases like oxygen for breathing of animal kingdom and carbon dioxide is inhaled by plant kingdom. Long Answer Type Questions: Describe the composition of the air. C. Nitrogen. Class 7 Study Material, Worksheets, NCERT Answers, Sample Question Papers Hindi, Science, Maths, Social Science, Computers, French, English Grammar. What is atmospheric pressure? Practicing these NCERT Social Science MCQs for Class 7 CBSE with Answers Pdf will guide students to do a quick revision for all the concepts present in each chapter and prepare for final exams. Answers the following questions: (i) Give two uses of air. • Ozone layer is present here. A) The air in the atmosphere forms bubbles. Multiple Choice Questions: Which of the following cause/s humidity and rain? Why do places lying the windward side get rainfall while the leeward side remains dry? 0. Question 1. (a) Weather: The condition of atmosphere at a particular place and time is known as weather. Social Studies. Major gases present are: Other Gases – 0.04% (like – helium, hydrogen, methane, ozone, etc. Download the best answers to perform well in your exams. Question 2. 1. TOP Basic GK Questions And Answers For Class 7 Q6. (iv) Write three uses of water in your daily life. Practicing these NCERT Social Science MCQs for Class 7 CBSE with Answers Pdf will guide students to do a quick revision for all the concepts present in each chapter and prepare for final exams. Ans. Q2. Read the data given below and answer questions 8 and 9. → Low pressure is associated with cloudy skies and wet weather. Ans: Thermosphere or Ionosphere is the layer of the atmosphere enables wireless communications. Class 7 Social Science MCQs Questions with Answers Chapter Wise PDF Download. After an hour she noted the temperatures. Surrounding air moves toward the low-pressure area and starts to circulate, cyclone moves clockwise in the Southern Hemisphere and anticlockwise in the Northern Hemisphere. Surrounding air moves toward the low-pressure area and starts to circulate, cyclone moves clockwise in the Southern Hemisphere and anticlockwise in the Northern Hemisphere. Which layer of the atmosphere enables wireless communications? Answer the following questions. Exosphere:• This is the uppermost layer above the ionosphere and it extends from 400 kms onwards and there is no end. ... Hi Guest, Sign In or Create an Account . Mobile: 0716 858334 / 0712 054195. What are the different types of winds? 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