These questions are based on NCERT Social Exam question papers of Class 7. 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. Q6. Types of precipitation: Rainfall, Snowfall, Hail, Sleet, etc. • Temperature again drops in this layer and can reach upto -100 degree Celsius at the upper boundary layer. Log in. a. River’s water b. Pond water c. Sea water d. Rain water Q.2. What is atmospheric pressure? (c) Sirocco: These are hot and moist winds, which blow from Sahara desert to Mediterranean Sea. Seasonal or Periodic Winds: These winds change their direction in different seasons. • Temperature decreases at the rate of 1 degree Celsius from every 165 mtrs of ascent. Q5. 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. and water vapours & dust particles. On weather maps, a so . Atmospheric Pressure is a very important element of weather and climate. How do all living beings depend on the atmosphere for their survival? Carbon dioxide, helium, … What is air pressure? The best example is "Monsoon Winds". It's a daily feature in the equatorial regions. Change Class CLASS 7 . 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. Class 7 Study Material, Worksheets, NCERT Answers, Sample Question Papers Hindi, Science, Maths, Social Science, Computers, French, English Grammar. Dust particles present in the air form tiny droplets of water when _____. I. Describe the different types of rainfall, Support your answer with appropriate diagram.Ans. Define the term atmosphere. Q4. (b) Oxides of sulphur and nitrogen combine with rain water to form sulphuric acid and nitric acid which cause acid rain. It Extends upto 15 kms from the earth's surface. She took two bowls of sand and water and placed them in sunlight. (a) Convectional Rainfall (b) Cyclone rain Question from very important topics are covered by NCERT Exemplar Class 6. Troposphere:• This layer is next to earth surface. What are the factors affecting temperature of any place? Structure of Atmosphere: Atmosphere is divided into five different layers (Troposphere, Stratosphere, Mesosphere, Ionosphere and Exosphere). Select Subject | Science. Importance of 7th Grade Science Questions Answers. What is the main source of freshwater on the earth's surface?Ans: The process in which water vapour falls on the surface of the earth is known as precipitation. 0 likes. (ii) Which two gases make the bulk of the atmosphere? Permanent or Planetary Winds: These winds blow constantly throughout the year in a particular direction. 1. In the United States, cyclones often are called tornadoes. Q5. Change Class Class 7 CRE Questions and 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. Which gas makes up the largest part of air? With the help of science, news can be delivered from one place to another at an early location at a quick time. (a) Humidity (b) Wind (c) Pressure _____ rises up in the air when it gets heated. Such fast-moving aircraft and air buses. ICSE Class 7 Chemistry syllabus and practice sample questions papers for each topic to score high in exams. ... Class 7 CRE Revision Questions - (Click appropriate answer then click submit) Guest Account. Class VII: Chapter 4 (Air) Question & Answer. Q6. Nov 29, 2020 - Some Extra Questions: Chapter 4 - Air, Class 7, SST Class 7 Notes | EduRev is made by best teachers of Class 7. (b) Westerlies: These winds blow from Sub-Tropical high pressure belt to Sub-Polar low pressure belt. Following are the factors affecting temperature of any place:(a) Latitude or Distance From Equator. Why do places lying the windward side get rainfall while the leeward side remains dry? Assign HW. A huge blanket of air by which our earth is surrounded is called atmosphere. We have Provided Air Class 7 Geography MCQs Questions with Answers to help students understand the concept very well. Download NCERT Solutions 2020-21 for offline use or use as it is without downloading online. What do you mean by precipitation? A. For help very very good answer. 2. (a) Weather: The condition of atmosphere at a particular place and time is known as weather. Q(vi). Carbon dioxide. (e) Oxygen occupies about 21% of air by volume. ... Aditi 16 September, 2019 Thanks all questions and answers match from my book. done clear. Ans. This document is highly rated by Class 7 … (a) heated (b) condensed (c) melted . Save. What is a cyclone? What is the main cause of air pollution?Ans: Any change in the composition of air is termed as "Air Pollution". 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. 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. Why does this happen? (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. What are the different types of winds? 1800-102-5301 Check the below NCERT MCQ Questions for Class 7 Geography Chapter 4 Air with Answers Pdf free download. A. You can see some Short and Long Question Answers - Air Class 7 Notes | EduRev sample questions with examples at the bottom of this page. Important questions as per the latest NCERT Syllabus and from popular books are … Thanks all questions and answers match from my book, Thankyou. (iv) What is weather? 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). • Temperature is very high. Q1. Temperature increase with increase in height. That is why it tends to sink down. In the United States, cyclones often are called tornadoes.An anticyclone system has characteristics opposite to that of a cyclone. MCQ Questions for Class 7 Social Science Geography. D. Sulfur dioxide. What are the different types of winds? Q4. • This is the uppermost layer above the ionosphere and it extends from 400 kms onwards and there is no end. CBSE NCERT Solutions for Class 7 Social Science Geography Chapter 4 Air is given here updated for session 2020-2021. Question: Which part of the plant take up the nutrients and water (a) Steam (b) Roots (c) Leave (d) None of These Answer: Roots. Ans: The weight of air on the earth's surface is referred to as "Atmospheric Pressure". Answer: Clear and sunny sky Prepared by teachers of the best CBSE schools in India. 7th grade . Cyclones can produce cloudy weather and broad areas of rain and even snow. Class 7 Geography Chapter 4 Extra Question with Answer – Air. CBSE Class 6th, 7th, 8th, 9th, & 10th | Help Guide | Solved Exercises | MCQs | Questions & Answers | Sample Papers. Answers the following questions: (i) Give two uses of air. (e) It protects us from falling meteors and other cosmic dusts. Hence, this layer is ideal for the air transportation. The personalised interactive medium of learning helps even non-participative students become responsive. Q4. Types of precipitation: Rainfall, Snowfall, Hail, Sleet, etc. Answer the following questions: 1. Very Short Answer Questions. (a) Trade Winds: These winds blow from Sub-Tropical high pressure belt towards Equatorial low pressure belt. Question 1. Q38. The simple and accurate answers provided here are perfect for effective exam preparations. Describe the structure of the atmosphere. Ans: Atmosphere is composed of various gases. Answer: Nitrogen and Oxygen Q3: Which gas creates green house effect in the atmosphere? (c) NO 2 and CO are the most common air pollutants. 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. Class: 7 Duration of the Period: 45 minutes Subject: Social Science ( Geography) Topic: Atmosphere Lesson Plan Type: Real Teaching It extends upto 500 kms. Why wet clothes take longer time to dry on a humid day? Read the data given below and answer questions 8 and 9. C. Oxides of nitrogen. BAL BHARATI PUBLIC SCHOOL GANGA RAM HOSPITAL MARG 4. Structure of Atmosphere: Atmosphere is divided into five different layers (Troposphere, Stratosphere, Mesosphere, Ionosphere and Exosphere). • Where temperature is high the air gets heated and rises which creates a low-pressure area. This portal is designed to support Students and Teachers of Central Board of Secondary Education. Answer the following questions briefly. Social Studies. a. She noted the temperatures again after one hour and made the following observations. Dec 10, 2020 - Chapter Notes - Chapter 4: Air, SST, Class 7 | EduRev Notes is made by best teachers of Class 7. For help in the study Ans. All questions and answers from the NCERT Book of Class 7 Social science Chapter 4 are provided here for you for free. • Average height: 13 kms at poles and 18 kms over the equator. Convectional Rainfall: When hot air expands and rise to the upper layer of the atmosphere, condensation takes place which leads to formation of clouds. This decline is known as normal lapse rate. Hello Guest, Create an Account or Login to save your progress and get unlimited access to more questions. 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. Air - Solved Exercises Question1.Answer the following questions. 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