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. TOP Basic GK Questions And Answers For Class 7 • Where temperature is high the air gets heated and rises which creates a low-pressure area. Question 1. • This layer protects us from the harmful radiation. Question from very important topics are covered by NCERT Exemplar Class 6. To score good marks in the examinations, students are advised to study NCERT solution for class 6 science. Students can also use the CBSE Class 7 Geography Chapter 4 Air Important Questions to prepare most competently for the exam. 3. Q6. What is the main cause of air pollution?Ans: Any change in the composition of air is termed as "Air Pollution". Answer: Blanket of air surrounding the earth is known as the atmosphere. (a) Planets (b) Moon (c) Sun . Nov 29, 2020 - Some Extra Questions: Chapter 4 - Air, Class 7, SST Class 7 Notes | EduRev is made by best teachers of Class 7. I. Share practice link . You also get idea about the type of questions and method to answer in your Class 8th examination. What is a cyclone? A. Answer. Ans: Barometer is the unit used for measuring air pressure. • All weather changes take place in this layer. In the United States, cyclones often are called tornadoes. The majority of the atmosphere is made up of nitrogen (78%) and oxygen (21%). Q3. Edit. Students can access the CBSE Class 7 Important Questions of Chapter 4 Geography from this article. 1800-102-5301 (e) It protects us from falling meteors and other cosmic dusts. Q3. Read the concept to answers the questions on needs of air. 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. In the atmosphere, nitrogen and oxygen are found in plentiful ratio. This document is highly rated by Class 7 … A cyclone is a large wind system that moves around an area of low atmospheric pressure. Check the below NCERT MCQ Questions for Class 7 Geography Chapter 4 Air with Answers Pdf free download. NCERT Solutions for Class 6 Science Air around Us. 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. What are the factors affecting temperature of any place?Ans. 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. (e) Oxygen occupies about 21% of air by volume. Ans: The process in which water vapour falls on the surface of the earth is known as precipitation. Play Live Live. Cyclones can produce cloudy weather and broad areas of rain and even snow. Due to presence of these ions, this layer is also known as ionosphere. come to the facility. ... Class 7 CRE Revision Questions - (Click appropriate answer then click submit) Guest Account. 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 … MCQ Questions for Class 7 Social Science Geography : The Earth: … a. Nitrogen b. For help in the study (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. When the ink filler is dipped into a beaker of water and the bulb is pressed, air bubbles appear in water. Underground water is the main source of freshwater on the earth's surface. Describe the composition of the atmosphere. C. Oxides of nitrogen. The best example is "Monsoon Winds". (c) Increase in numbers of automobiles. Fill in the blanks : (a) Argon is the most abundant inert gas present in air. (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. This decline is known as normal lapse rate. (d) Burning of solid waste. Question: Which part of the plant take up the nutrients and water (a) Steam (b) Roots (c) Leave (d) None of These Answer: Roots. (c) Tiny dust particles help in the formation of the rain droplets. 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. 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. Class: 7 Duration of the Period: 45 minutes Subject: Social Science ( Geography) Topic: Atmosphere Lesson Plan Type: Real Teaching 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. These winds bring short time changes in the weather conditions over a smaller area. Describe the different types of rainfall, Support your answer with appropriate diagram. She took two bowls of sand and water and placed them in sunlight. (a) Air (b) Plants (c) Water (d) None of These Answer: Plants. She noted the temperatures again after one hour and made the following observations. 1. Answer the following questions. Class 7 Social Science MCQs Questions with Answers Chapter Wise PDF Download. (b) Loo: These are hot and dry winds which, blow during the summer season in the northern part of India. D. Sulfur dioxide. MCQ Questions for Class 7 Social Science with Answers were prepared based on the latest exam pattern. Which is the most important layer of the atmosphere? • This layer contains electrically charged particles called ions, which are found at a height of 250 kms. Pages. OBJECTIVE TYPE QUESTIONS. Following are the main cause of air pollution: (b) Excessive burning of the fossil fuels. BAL BHARATI PUBLIC SCHOOL GANGA RAM HOSPITAL MARG Mobile: 0716 858334 / 0712 054195. Get all questions and answers of Air And Atmosphere of ICSE Class 7 Chemistry on TopperLearning. Important questions as per the latest NCERT Syllabus and from popular books are … Some of the examples are: -(a) Chinook: Chinook means 'snow eater'. (a) Water vapour (b) Water (c) Ice . 13 minutes ago by. They burn when coming in contact with the atmosphere. (b) Westerlies: These winds blow from Sub-Tropical high pressure belt to Sub-Polar low pressure belt. What do you mean by wind? Carbon monoxide . Q(vi). 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 Q(i).What is atmosphere? 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 ? Question and Answer forum for CBSE Class 7 handled by subject experts; Meritnation serves the purpose of developing learning abilities among CBSE Class 7 students. What are the different types of winds? Question 9.How do plants and animals help each other in exchange of gases in the atmosphere? Which water is salty in taste? For example, land and sea breeze. Light gases like hydrogen and helium float into space from here. (i) What is atmosphere? A cyclone is a large wind system that moves around an area of low atmospheric pressure. Save. Short Answer Type Questions. Answer. Air class-7 DRAFT. Download the NCERT Solutions for Class 7 Geography Chapter 4 - Air here in PDF format. (ii) Why should we drink clean water? Q4. Carbon dioxide. Ozone layer absorbs/reflects the harmful ultraviolet rays of the sun.• The boundary separating stratosphere and mesosphere is known as stratopause. Online Test of Chapter -5 Water Test 1 | Geography Class 7th Social Science (S.St) Q. Jasmine conducted an experiment. 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. 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. Tribhuwan kumar 03 May, 2020 Very good answer. • This is the uppermost layer above the ionosphere and it extends from 400 kms onwards and there is no end. Answer: The composition of gases in the atmosphere can be classified as Nitrogen (78%), Oxygen (21%), Argon (0.93%), Carbon dioxide (0.03%) and water vapor (0.1%). a. What is dew point?Ans: Temperature at which air gets saturated is known as "Dew Point". (b)Nitrogen. Q4: Why there … 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. It always produces a rain shadow effect. Troposphere:• This layer is next to earth surface. 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) What is the difference between Air Guard and Air Force? Questions and Answers . How is it different from anti cyclone? 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. Blog provides NCERT solutions, CBSE, NTSE, Olympiad study material, model test papers, important Questions and Answers asked in CBSE examinations. 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. Short Q&A: Q1: What happens when air comes in contact with a cool surface? How do all living beings depend on the atmosphere for their survival? 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. Ans: Thermosphere or Ionosphere is the layer of the atmosphere enables wireless communications. […] Air - Solved Exercises Question1.Answer the following questions. They blow in North America. C) The liquid rushes into the filler forming bubbles. It is a very thin layer and it merges with the space. Ans. Answer: Seasonal; High pressure is associated with _____. View Answer. Multiple Choice Questions: Which of the following cause/s humidity and rain? and water vapours & dust particles. 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 ? (d) It acts as a blanket which prevents the earth from becoming too hot during day and too cold during night. How is it important to us? Change Class. (c) Tiny dust particles help in the formation of the rain droplets. (a) heated (b) condensed (c) melted . question_answer44) Shown here is the picture of an ink filler. Answer: The air that we breathe is a mixture of many gases like oxygen, nitrogen, carbon dioxide, argon etc. Q5. Which of the following substances is not an atmospheric pollutant? • This layer is next to mesosphere and it extends from 80 kms to 400 kms. 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. Q5. Very Short Answer Questions. Describe the different types of rainfall, Support your answer with appropriate diagram.Ans. 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. Structure of Atmosphere: Atmosphere is divided into five different layers (Troposphere, Stratosphere, Mesosphere, Ionosphere and Exosphere). What is responsible for the excess of … D. Sulfur dioxide. and water vapours & dust particles. Ans: Any change in the composition of air is termed as "Air Pollution". We have Provided Air Class 7 Geography MCQs Questions with Answers to help students understand the concept very well. The majority of the atmosphere is made up of nitrogen (78%) and oxygen (21%). All questions and answers from the NCERT Book of Class 7 Social science Chapter 4 are provided here for you for free. Q2. Hello Guest, Create an Account or Login to save your progress and get unlimited access to more questions. Answer the following questions: 1. Q4. Ans. Seasonal or Periodic Winds: These winds change their direction in different seasons. Draw a diagram also.Ans. 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. It's a daily feature in the equatorial regions. (b) Excessive burning of the fossil fuels. Following are the factors affecting temperature of any place:(a) Latitude or Distance From Equator. This makes the leeward side of the mountain have a dry climate. Which gas makes up the largest part of air? Q1. Class 7 | Science Notes, Revision Questions and Answers. Q1. Helped alot!!!! Ans. This quiz is incomplete! The simple and accurate answers provided here are perfect for effective exam preparations. Air Class 7 MCQs Questions with Answers. Dec 10, 2020 - Chapter Notes - Chapter 4: Air, SST, Class 7 | EduRev Notes is made by best teachers of Class 7. Q2. 2. Thursday, 10 November 2011. 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