Q4. Cyclones can produce cloudy weather and broad areas of rain and even snow. 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. These winds are strong, warm and dry. • Average height: 13 kms at poles and 18 kms over the equator. Carbon dioxide, helium, … (c) Increase in numbers of automobiles. 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 VII (7th) Geography -Chapter 4. Describe the different types of rainfall, Support your answer with appropriate diagram.Ans. Give reason for your answer. Answers the following questions: (i) Give two uses of air. 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. 0% average accuracy. Atmospheric Pressure is a very important element of weather and climate. Answer: The blanket of air surrounding the earth is called the atmosphere.The atmosphere primarily comprises nitrogen and oxygen in bulk and other gases like carbon dioxide, helium, ozone, etc in lesser quantities. Types of precipitation: Rainfall, Snowfall, Hail, Sleet, etc. Very helpful content, Nice answers.I am using these answers . • All weather changes take place in this layer. When a cold air mass is being replaced by a warm air mass, this transition zone is known as a warm front. Q(vi). Here you can get Class 8 Important Questions Science based on NCERT Text book for Class VIII. Assign HW. This makes the leeward side of the mountain have a dry climate. 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) It always produces a rain shadow effect. That is why it tends to sink down. 5. 2. (d) Burning of solid waste. 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. 13 minutes ago by. Air class-7 DRAFT. (i) What is atmosphere? Q2: Why do you think mountaineer carry oxygen cylinders with them, while climbing high mountains? The majority of the atmosphere is made up of nitrogen (78%) and oxygen (21%). → Horizontally the distribution of air pressure is influenced by temperature of air at a given place. TopperLearning’s Experts and Students has answered all of Air And Atmosphere of ICSE Class 7 Chemistry questions in detail. An anticyclone system has characteristics opposite to that of a cyclone. What is a cyclone? TOP Basic GK Questions And Answers For Class 7 • Temperature is very high. • This layer is next to earth surface. Why is atmosphere important for us?Ans. Ans. It is a very thin layer and it merges with the space.• This layer protects us from the harmful radiation.• Temperature is very high. The personalised interactive medium of learning helps even non-participative students become responsive. Geography Chapter 4 Air Class 7 Inside 5 Marks, 3 marks, 2 Marks & And 1 Marks Important Questions and Answers. What are the different types of winds? (b) Excessive burning of the fossil fuels. MCQ Questions for Class 7 Social Science Geography. It Extends upto 15 kms from the earth's surface.• Temperature decreases at the rate of 1 degree Celsius from every 165 mtrs of ascent. (b) Drizzle: Light rainfall in the form of very tiny drop of water is called "Drizzle". Air Force is a large … :), Very nice and useful answers, thanks to you. (b)Nitrogen. 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. Describe the composition of the atmosphere. Local Winds: These winds blow only during a particular period of the day or year. You can see some Short and Long Question Answers - Air Class 7 Notes | EduRev sample questions with examples at the bottom of this page. Define the term atmosphere. Troposphere:• This layer is next to earth surface. Which layer of the atmosphere enables wireless communications?Ans: Thermosphere or Ionosphere is the layer of the atmosphere enables wireless communications. What is global warming? Q3. Following are the factors affecting temperature of any place: (b) Altitude or Height Above The Sea Level. Download the NCERT Solutions for Class 7 Geography Chapter 4 - Air here in PDF format. 0. Ans: Barometer is the unit used for measuring air pressure. Q5. 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. Seasonal or Periodic Winds: These winds change their direction in different seasons. (v) Name three types of rainfall (vi) What is air pressure? What do you mean by wind? Types of precipitation: Rainfall, Snowfall, Hail, Sleet, etc. Question 1. Simran Kumari 01 August, 2020 Thanks. (b) Loo: These are hot and dry winds which, blow during the summer season in the northern part of India. This portal is designed to support Students and Teachers of Central Board of Secondary Education. Answer. 1. How do all living beings depend on the atmosphere for their survival? What is the main cause of air pollution?Ans: Any change in the composition of air is termed as "Air Pollution". Answer: What are the different types of winds? Multiple Choice Questions: Which of the following cause/s humidity and rain? Short Answer Type Questions. 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. Carbon monoxide . 3. 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. Quiz On Air 11 Questions | By Bridgette | Last updated: Oct 17, 2018 | Total Attempts: 7183 Questions All questions 5 questions 6 questions 7 questions 8 questions 9 questions 10 questions 11 questions Following are the factors affecting temperature of any place:(a) Latitude or Distance From Equator. Q3. (a) Cockroach, grasshopper, snail, ant (b) Lizard, cow, earthworm, snake (c) Crocodile, whale, dolphin, fish (d) Snake, tadpole, crow, goat Answer: (a) Snail is the odd one, as it does not breathe by means of tracheae. A difference in the air pressure defines the direction of wind flow and accordingly, brings changes in the weather conditions. Answer: The air that we breathe is a mixture of many gases like oxygen, nitrogen, carbon dioxide, argon etc. and water vapours & dust particles. 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 … What is the composition of the air?Ans: Atmosphere is composed of various gases. How is it important to us? Which layer of the atmosphere enables wireless communications? 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. (a) Humidity (b) Wind (c) Pressure _____ rises up in the air when it gets heated. Light gases like hydrogen and helium float into space from here. Oxygen exists in this layer.• The boundary separating troposphere and stratosphere is known as tropopause. Solo Practice . Question 1. (a) Air (b) Plants (c) Water (d) None of These Answer: Plants. (c) Tiny dust particles help in the formation of the rain droplets. • Ozone layer is present here. Ozone layer absorbs/reflects the harmful ultraviolet rays of the sun.• The boundary separating stratosphere and mesosphere is known as stratopause. • The boundary separating stratosphere and mesosphere is known as stratopause. Ans. Q4: Why there … Q1. (d) Joseph Priestly discovered the oxygen gas. Q5. Online Test of Chapter -5 Water Test 1 | Geography Class 7th Social Science (S.St) Q. They blow in North America. For help very very good answer. Answer: Seasonal; High pressure is associated with _____. Define: (a) Weather (b) Climate?Ans:(a) Weather: The condition of atmosphere at a particular place and time is known as weather.

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