air class 7 questions and answers

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Air pressure is defined as the pressure exerted by the weight of air on the earth's surface. 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. Discuss. Answer the following questions briefly. A huge blanket of air by which our earth is surrounded is called atmosphere. The methods used by us comprise means to self-analyse one’s preparation. 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. (b) Loo: These are hot and dry winds which, blow during the summer season in the northern part of India. Jasmine conducted an experiment. Which day of the year is celebrated as water day? A cyclone is a large wind system that moves around an area of low atmospheric pressure. 2. Ans. thanks nirmancare. Geography Chapter 4 Air Class 7 Inside 5 Marks, 3 marks, 2 Marks & And 1 Marks Important Questions and Answers. Oxygen. This decline is known as normal lapse rate. Air Class 7 MCQs Questions with Answers. It extends upto 500 kms. 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 … (a) Convectional Rainfall (b) Cyclone rain Q2: Why do you think mountaineer carry oxygen cylinders with them, while climbing high mountains? Describe the structure of the atmosphere. (e) Fire, etc. • This layer is next to stratosphere and it extends from 50 kms to 80 kms. Print; Share; Edit; Delete; Report an issue; Start a multiplayer game . 3. • The boundary separating stratosphere and mesosphere is known as stratopause. View Answer. • Average height: 13 kms at poles and 18 kms over the equator. Q4. ICSE Class 7 Chemistry syllabus and practice sample questions papers for each topic to score high in exams. 13 minutes ago by. 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. (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 Extra Questions and Answer Geography Chapter 4 Long Answers Type. (f) Presence of gases, dust particles and water vapours lend colours to sky. (b)Nitrogen. Describe the structure of the atmosphere. Question 1. Question 9: Pick the odd one out from each of the groups given below on the basis of respiratory organs. and water vapours & dust particles. 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). Geography Chapter 4 Air Class 7 Inside 5 Marks, 3 marks, 2 Marks & And 1 Marks Important Questions and Answers. (iii) Which gas creates greenhouse effect in the atmosphere? 5. (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. You also get idea about the type of questions and method to answer in your Class 6th examination. This is your solution of NCERT Textbook - Air Class 7 Notes | EduRev search giving you solved answers for the same. Following are the main cause of air pollution:(a) Rapid industrial growth. Ozone layer absorbs/reflects the harmful ultraviolet rays of the sun.• The boundary separating stratosphere and mesosphere is known as stratopause. • This layer is next to earth surface. • This layer is free from weather changes, cloud formation and dust particles. Name the unit used for measuring air pressure. Q39. Very Short Answer Questions. Answer. Air class-7 DRAFT. How is it important to us? 1. Ans. (a) heated (b) condensed (c) melted . 1. This is because the prevailing winds come up and the cool air tries to hold that much moisture. 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. Edit. (b) Drizzle: Light rainfall in the form of very tiny drop of water is called "Drizzle". (a) Trade Winds: These winds blow from Sub-Tropical high pressure belt towards Equatorial low pressure belt. krsantoshadarsh_52779. (f) Presence of gases, dust particles and water vapours lend colours to sky. 1. Multiple Choice Questions (MCQ) for CBSE Class 7 all subjects on Topperlearning. Oxygen exists in this layer. A) The air in the atmosphere forms bubbles. • This layer contains electrically charged particles called ions, which are found at a height of 250 kms. B. (a) Water vapour (b) Water (c) Ice . These clouds produce sudden and heavy rainfall. Q38. The personalised interactive medium of learning helps even non-participative students become responsive. Q5. Draw a diagram also.Ans. Describe the composition of the atmosphere. (c) Polar Easterlies: These winds blow from Polar high pressure belt to Sub-Polar low pressure belt. Ans: The weight of air on the earth's surface is referred to as "Atmospheric Pressure". Atmosphere is divided into five different layers ( troposphere, stratosphere, mesosphere, Ionosphere and Exosphere ) has. And time is known as a blanket which prevents the earth is known tropopause... To self-analyse one ’ s water air class 7 questions and answers Pond water c. Sea water d. rain water Q.2 Average! Oxygen exists in this layer.• the boundary separating stratosphere and mesosphere is known as the atmosphere is of! Answers were prepared based on NCERT Text book for Class 7 - get Science study materials, Notes Revision! 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