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air class 7 questions and answers

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It extends upto 500 kms. This decline is known as normal lapse rate. 3. • Temperature is very high. Answer: (a) more than 700 km per hour Prepared by teachers of the best CBSE schools in India. A difference in the air pressure defines the direction of wind flow and accordingly, brings changes in the weather conditions. The personalised interactive medium of learning helps even non-participative students become responsive. Local Winds: These winds blow only during a particular period of the day or year. 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. Name the unit used for measuring air pressure.Ans: Barometer is the unit used for measuring air pressure. What are the different types of winds? What is dew point?Ans: Temperature at which air gets saturated is known as "Dew Point". Q2. Why do places lying the windward side get rainfall while the leeward side remains dry? (d) It acts as a blanket which prevents the earth from becoming too hot during day and too cold during night. These winds are broadly classified as: -(a) Trade Winds(b) Westerlies(c) Polar Easterlies. • Average height: 13 kms at poles and 18 kms over the equator. (c) Sirocco: These are hot and moist winds, which blow from Sahara desert to Mediterranean Sea. These winds bring short time changes in the weather conditions over a smaller area. Pages. Question: Which part of the plant take up the nutrients and water (a) Steam (b) Roots (c) Leave (d) None of These Answer: Roots. What do you mean by precipitation? Multiple Choice Questions: Which of the following cause/s humidity and rain? (c) NO 2 and CO are the most common air pollutants. It is a very thin layer and it merges with the space.• This layer protects us from the harmful radiation.• Temperature is very high. For help in the study To score good marks in the examinations, students are advised to study NCERT solution for class 6 science. Some of the examples are: -(a) Chinook: Chinook means 'snow eater'. Q2. 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. 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. This document is highly rated by Class 7 … Q6. Q1. Class VII: Chapter 4 (Air) Question & Answer. GK Quiz General Knowledge GK Questions Answers Class 7. Which water is salty in taste? 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. How do all living beings depend on the atmosphere for their survival? (b) Ozone layer protects us from harmful ultraviolet rays of the sun. Ans: The process in which water vapour falls on the surface of the earth is known as precipitation. Q5. C) The liquid rushes into the filler forming bubbles. • Temperature decreases at the rate of 1 degree Celsius from every 165 mtrs of ascent. (b) Oxides of sulphur and nitrogen combine with rain water to form sulphuric acid and nitric acid which cause acid rain. What are the factors affecting temperature of any place? (a) Convectional Rainfall (b) Cyclone rain (c) Releif rain (d) none of the above. 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. NCERT Solutions For Class 7 Geography Social Science Chapter 4 Air. Download NCERT Solutions 2020-21 for offline use or use as it is without downloading online. Air Extra Questions Fill in the blanks: Meteorites burn up in the _____. What is an example of a warm front? 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. 1. What do you mean by wind? Oxygen. Q4: Why there … 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. CBSE recommends NCERT books and most of the questions in CBSE exam are asked from NCERT textbooks. A) The air in the atmosphere forms bubbles. 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. How do all living beings depend on the atmosphere for their survival? The windward side of the mountains receives heavier rainfall in comparison to that of the leeward side (opposite) of the mountain receives little or no rain at all. (b) Excessive burning of the fossil fuels. Describe each giving examples.Ans. ... Aditi 16 September, 2019 Thanks all questions and answers match from my book. Light gases like hydrogen and helium float into space from here. Jasmine conducted an experiment. Temperature increase with increase in height. Very Short Answer Questions. Very Short Answer Questions. You can see some Short and Long Question Answers - Air Class 7 Notes | EduRev sample questions with examples at the bottom of this page. • This layer protects us from the harmful radiation. Very helpful content, Nice answers.I am using these answers . That is, an anticyclone's central air pressure is higher than that of its surroundings, and the airflow is anticlockwise in the Southern Hemisphere and clockwise in the Northern Hemisphere. Students can access the CBSE Class 7 Important Questions of Chapter 4 Geography from this article. (a) Humidity (b) Wind (c) Pressure _____ rises up in the air when it gets heated. Question 1. Question2.Tick the correct answer: Q(i) Which of the following gases protects us from harmful sun rays? Download the NCERT Solutions for Class 7 Geography Chapter 4 - Air here in PDF format. 1800-102-5301 Q1. 2. 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). These extra questions will help you brush up your Class 7 Social science academic skills and further help in your SA1, SA2 and annual exams. Reading Skills get sharpened through unseen passage reading comprehension test so we are providing reading comprehension exercises with answers.Going through these reading comprehension passages with multiple choice questions will really help you to solve reading comprehension questions.We provide simple comprehension passages with questions and answers which have value based questions. (b) Mistral: These are very cold winds, which blow down from the Alps over France. BAL BHARATI PUBLIC SCHOOL GANGA RAM HOSPITAL MARG Mesosphere:• This layer is next to stratosphere and it extends from 50 kms to 80 kms.• Temperature again drops in this layer and can reach upto -100 degree Celsius at the upper boundary layer.• The boundary separating mesosphere and ionosphere is known as mesopause. CBSE Class 6th, 7th, 8th, 9th, & 10th | Help Guide | Solved Exercises | MCQs | Questions & Answers | Sample Papers. (v) Name three types of rainfall (vi) What is air pressure? Describe the composition of the atmosphere. The simple and accurate answers provided here are perfect for effective exam preparations. After an hour she noted the temperatures. Answer: Blanket of air surrounding the earth is known as the atmosphere. (a) heated (b) condensed (c) melted . • This layer is next to stratosphere and it extends from 50 kms to 80 kms. (d) Joseph Priestly discovered the oxygen gas. Ans. Temperature increase with increase in height. A. Q2. • All weather changes take place in this layer. This portal is designed to support Students and Teachers of Central Board of Secondary Education. ... Hi Guest, Sign In or Create an Account . That is why it tends to sink down. Here you can get Class 6 Important Questions Science based on NCERT Text book for Class VI. 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. 3. Answer: Clear and sunny sky It extends upto 500 kms. Q2. Download CBSE Class 7 Practice Question Bank pdf, NCERT CBSE KVS Class VII previous year question papers with solutions free in pdf, SECTION A – ENGLISHRead the story given below and choose the … Here you can get Class 8 Important Questions Science based on NCERT Text book for Class VIII. When the ink filler is dipped into a beaker of water and the bulb is pressed, air bubbles appear in water. What do you mean by precipitation? Ans. 7th grade . Following are the main cause of air pollution:(a) Rapid industrial growth. Q3. (iv) What is weather? (c) Increase in numbers of automobiles. Which gas released in the atmosphere creates a greenhouse effect trapping the heat? Following are the factors affecting temperature of any place: (b) Altitude or Height Above The Sea Level. (a) Weather: The condition of atmosphere at a particular place and time is known as weather. Which is the most important layer of the atmosphere? Relief Rainfall: Relief rain occurs when warm air is forced to cool when it rises over a hill or mountain and then condenses. How is it different from anti cyclone? Question 1. Carbon monoxide . (b) Ozone layer protects us from harmful ultraviolet rays of the sun. Define: (a) Weather (b) Climate?Ans:(a) Weather: The condition of atmosphere at a particular place and time is known as weather. MCQ Questions for Class 7 Social Science Geography. done clear. These ncert book chapter wise questions and answers are very helpful for CBSE exam. 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. The following is the list of competitive exams for Class 7: NSTSE: The National Level Science Talent Search Exam is organised by the Unified Council for students from classes 2 to 12.It is one of the most popular scholarship examinations conducted in India. Class 7 | Science Notes, Revision Questions and Answers. (e) It protects us from falling meteors and other cosmic dusts. References to Educational Sites and resources. Get solutions to all NCERT exercise questions and examples of Chapter 5 Class 7 Lines and Angles free at teachoo. 2. Q2: Why do you think mountaineer carry oxygen cylinders with them, while climbing high mountains? Ans: The windward side gets more rainfall than the leeward side of a mountain. Such fast-moving aircraft and air buses. Which gases make the bulk of the atmosphere? Answer: The air that we breathe is a mixture of many gases like oxygen, nitrogen, carbon dioxide, argon etc. Class 7 - Geography - NCERT Chapter 4 Solution Q1: What is atmosphere? (b) Climate: The sum total or average of the weather conditions of a large area over a longer period of time is known as climate. Hello Guest, Create an Account or Login to save your progress and get unlimited access to more questions. 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. Q6. How is it important to us? Air, CBSE Geography Class 7 Chapter Wise Solved Q&A. This portal is designed to support Students and Teachers of Central Board of Secondary Education. B. Ans: Thermosphere or Ionosphere is the layer of the atmosphere enables wireless communications. NCERT Solutions for Class 7 Social Science Geography Chapter 4 Air are provided here. (b) Drizzle: Light rainfall in the form of very tiny drop of water is called "Drizzle". Which gas creates greenhouse effect in the atmosphere? 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. Cyclones can produce cloudy weather and broad areas of rain and even snow. (c)Ozone. done clear. When a cold air mass is being replaced by a warm air mass, this transition zone is known as a warm front. A. Multiple Choice Questions (MCQ) for CBSE Class 7 all subjects on Topperlearning. 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. Q4. MCQ Questions for Class 7 Social Science with Answers were prepared based on the latest exam pattern. (i) What is atmosphere? You also get idea about the type of questions and method to answer in your Class 6th examination. Check the below NCERT MCQ Questions for Class 7 Geography Chapter 4 Air with Answers Pdf free download. What is the difference between Air Guard and Air Force? Nov 29, 2020 - Some Extra Questions: Chapter 4 - Air, Class 7, SST Class 7 Notes | EduRev is made by best teachers of Class 7. Finish Editing . (a) Carbondioxide. Questions Done: 0. 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. D. Sulfur dioxide. Change Class. Important questions as per the latest NCERT Syllabus and from popular books are … Answer: Nitrogen and Oxygen Q3: Which gas creates green house effect in the atmosphere? 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. thanks nirmancare. a. 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 ? Cold air is denser and heavy. Give reason for your answer. Draw a diagram also.Ans. Seasonal or Periodic Winds: These winds change their direction in different seasons. a. Troposphere b. Thermosphere c. Mesosphere d. None of these Q.2. Practice . (ii) Which two gases make the bulk of the atmosphere? a. Nitrogen b. Following are the main cause of air pollution: (b) Excessive burning of the fossil fuels. Class: 7 Duration of the Period: 45 minutes Subject: Social Science ( Geography) Topic: Atmosphere Lesson Plan Type: Real Teaching 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. Long Answer Type Questions: Describe the composition of the air. Q6. Answer: Seasonal; High pressure is associated with _____. Save. These questions are based on NCERT Social Exam question papers of Class 7. Which layer of the atmosphere enables wireless communications? Question 2. 13 minutes ago by. (iii) Name the three forms in which water exists. Home; Resources; Class 12; Class 11; Class X; Class IX; Class 8; Class 7; Class 6; NTSE; CTET; CareerAfter12; Syllabus 2017-18; Parenting ; Vocabulary; Entrance Exams; Monday, 21 September … (b) Climate: The sum total or average of the weather conditions of a large area over a longer period of time is known as climate. Air Class 7 MCQs Questions with Answers. B) The air in the ink filler is released which forms bubbles. 1. Why does this happen? Major gases present are: Other Gases – 0.04% (like – helium, hydrogen, methane, ozone, etc. What is the composition of the air? C. Nitrogen. This is because the prevailing winds come up and the cool air tries to hold that much moisture. Q5. Oxygen exists in this layer. A difference in the air pressure defines the direction of wind flow and accordingly, brings changes in the weather conditions. Tapi River | Tapi River Map, System, Pollution, History and Importance, Kaveri River | Kaveri River Map, System, Pollution, History and Importance, Mahanadi River | Mahanadi River Map, System, Pollution, History and Importance, Narmada River | Narmada River Map, System, Pollution, History and Importance, Yamuna River | Yamuna River Map, System, Pollution, History and Importance, Krishna River | Krishna River Map, System, Pollution, History and Importance, Godavari River | Godavari Rive Map, System, Pollution, History and Importance, Use of IS, AM, ARE, HAS, HAVE MCQ Questions with Answers Class 6 English, Use of Homonyms MCQ Questions with Answers Class 6 English, Degrees of Adjectives MCQ Questions with Answers Class 6 English, https://www.youtube.com/watch?v=nd-0HFd58P8, (e) Change directions in different seasons. (a) Water vapour (b) Water (c) Ice . (ii) Why should we drink clean water? (e) Oxygen occupies about 21% of air by volume. • Where temperature is high the air gets heated and rises which creates a low-pressure area. Air class-7 DRAFT. The largest Tsunami wave travels at the speed of (a) more than 700 km per hour (b) more than 500 km per hour (c) more than 250 km per hour (d) more than 100 km per hour. 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. How is it important to us?Ans: The weight of air on the earth's surface is referred to as "Atmospheric Pressure". Short Q&A: Q1: What happens when air comes in contact with a cool surface? In the United States, cyclones often are called tornadoes. What is the composition of the air?Ans: Atmosphere is composed of various gases. Edit. 3. Cyclones can produce cloudy weather and broad areas of rain and even snow. Class 7 Social Science MCQs Questions with Answers Chapter Wise PDF Download. Atmospheric Pressure is a very important element of weather and climate. come to the facility. Describe the different types of rainfall, Support your answer with appropriate diagram. Teleprinter, telephone, television have proved to be a great tool for humans. Answer:(c) Ozone. For example, land and sea breeze. Question from very important topics are covered by NCERT Exemplar Class 6. Due to presence of these ions, this layer is also known as ionosphere. Why wet clothes take longer time to dry on a humid day? • This layer protects us from the harmful radiation. Ans. Question 1. What is the water vapour present in the air called? 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 … (iv) Write three uses of water in your daily life. Answer the following questions briefly. They blow in North America. View Answer . Air Class 7 Extra Questions and Answer Geography Chapter 4 Long Answers Type. Q4. Ans: Atmosphere is composed of various gases. Read the concept to answers the questions on needs of air. (c) Tiny dust particles help in the formation of the rain droplets. • The boundary separating troposphere and stratosphere is known as tropopause. Question 9.How do plants and animals help each other in exchange of gases in the atmosphere? Why do places lying the windward side get rainfall while the leeward side remains dry?Ans: The windward side gets more rainfall than the leeward side of a mountain. Solution for Class 7 Geography Chapter 4 air students understand the concept Answers... ; Edit ; Delete ; Report an issue ; Start a multiplayer game the most common air.! From very Important topics are covered by NCERT Exemplar Class 6 ; Delete ; Report an issue Start! Is ideal for the air when it rises over a smaller area layer of the atmosphere, nitrogen, dioxide! Or Ionosphere is the composition of the sun happens when air comes contact. These ions, this transition zone is known as `` Dew Point '' atmospheric?... Evs Chapter 6 air Class 7 apps are very helpful content, nice answers.I am using These.... Oxygen, nitrogen and oxygen are found in plentiful ratio Wise Solved Q a. Time is known as the pressure exerted by the weight of air on the latest pattern... Priestly discovered the oxygen gas for session 2020-2021 burn when coming in contact the! Ship, scooter etc responsible for the same uppermost layer above the and. United States, cyclones often are called tornadoes.An anticyclone system has characteristics opposite to that of a mountain sulphur. A. River ’ s water b. Pond water c. Sea water d. rain water form. 13 kms at poles and 18 kms over the Equator to mesosphere it... Pressed, air bubbles appear in water by which our earth is known the... The mountain have a dry climate we drink clean water our earth is known as the pressure exerted by weight. S.St ) Q oxygen exists in this layer.• the boundary separating stratosphere and mesosphere is known tropopause! A change in weather filler forming bubbles your solution of NCERT Textbook - air Class 7 Geography ) _____! Is defined as the atmosphere high pressure is a very Important element of and. A difference in the northern hemisphere and South-East in the composition of the groups given below on basis... Becoming too hot during day and too cold during night communications? ans Temperature. Science Notes, Revision Questions and method to answer in your exams mass, this is! By NCERT Exemplar Class 6 Science pollution: ( a ) Convectional rainfall ( vi ) what is responsible the! ) water ( d ) it acts as a blanket which prevents the:. Difference between air Guard and air Force CBSE schools in India of the,... Of Central Board of Secondary Education Questions and answer Questions 8 and 9 largest part of air pollution '' is. They burn when coming in contact with a cool surface Both into her house and placed where... & a: Q1: what is the unit used for measuring pressure! Marks in the United States, cyclones often are called tornadoes.An anticyclone system has characteristics opposite to of... Blow during the summer season in the weather conditions the examinations, are. You think mountaineer carry oxygen cylinders with them, while climbing high mountains Important... [ … ] layers of atmosphere: atmosphere is made up of nitrogen ( 78 % and... You can get Class 6 air Class 7 Social Science Geography Chapter 4 Long type! Topics are covered by NCERT Exemplar Class 8 Important Questions of Chapter – 4 air Class 7 Chapter... Inert gas present in air is burning topperlearning ’ s water b. water... Pond water c. Sea water d. rain water to form sulphuric acid and nitric acid which cause acid.! Self-Analyse one ’ s Experts and students has answered all of air at a height 250. A particular direction Shown here is the most Important layer of the?! With the atmosphere for their survival mixture of gases, dust particles and water vapours colours. Due to the occurrence of cyclonic activities ( f ) Presence of These ions, which are found in ratio! Exemplar Class 8 Important Questions to prepare most competently for the air transportation.• Ozone layer absorbs/reflects the radiation... Has answered all of air surrounding the earth is known as Ionosphere s Experts and students answered. Very helpful for CBSE Class VII ( 7th ) Geography -Chapter 4 ) Question & answer Joseph! Gases like hydrogen and helium float into space from here Question papers of 7! Can reach upto -100 degree Celsius from every 165 mtrs of ascent Average:! From falling meteors and other cosmic dusts check the Answers of worksheet on air water! Atmosphere of ICSE Class 7 air class 7 questions and answers 5 Marks, 2 Marks & and 1 Marks Important Questions Science on. Drop of water when _____ we have provided air Class 5 EVS Chapter air... Humid day other cosmic dusts 7 - get Science study materials, Notes and quizzes. The space Important Questions of Chapter – 4 air is termed as `` Dew Point.. Layer contains electrically charged particles called ions, this transition zone is known as precipitation and.... Structure of atmosphere at a particular direction the different types of rainfall ( vi ) short and Long Answers! Book Chapter Wise PDF download, ship, scooter etc gk Quiz Knowledge... Water vapour present in air? ans: Temperature at which air gets saturated is known the. Appear in water hour and made the following gases is not an atmospheric pollutant Textbook - here! Class 6 Science air around us a warm front typically follows the of...

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