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Chapter 4. Air Geography class 7 in English Medium ncert book solutions NCERT Exercise
Chapter 4. Air NCERT Exercise – Complete NCERT Book Solutions for Class 7 Geography (English Medium). Get all chapter explanations, extra questions, solved examples and additional practice questions for Chapter 4. Air NCERT Exercise to help you master concepts and score higher.
Chapter 4. Air Geography class 7 in English Medium ncert book solutions NCERT Exercise
NCERT Solutions for Class 7 Geography play an important role in helping students understand the concepts of the chapter Chapter 4. Air clearly. This chapter includes the topic NCERT Exercise , which is essential from both academic and examination point of view. The solutions provided here are prepared strictly according to the latest NCERT syllabus and follow the guidelines of CBSE to ensure accuracy and relevance. Each question is explained in a simple and student-friendly manner so that learners can grasp the concepts without confusion. These NCERT Solutions are useful for regular study, homework help, and exam preparation. All textbook questions are solved step by step to improve problem-solving skills and conceptual clarity. Students of Class 7 studying Geography can use these solutions to revise important topics, understand difficult questions, and practise effectively before examinations. The chapter Chapter 4. Air is explained in a structured way, making it easier for students to connect the theory with the topic NCERT Exercise . By studying these updated NCERT Solutions for Class 7 Geography, students can build a strong foundation, boost their confidence, and score better marks in school and board exams.
Chapter 4. Air
NCERT Exercise
Exercise - Question:
Que: Answer the following questions.
(i) What is atmosphere?
(ii) Which two gases make the bulk of the atmosphere?
(iii) Which gas creates green house effect in the atmosphere?
(iv) What is weather?
(v) Name three types of rainfall?
(vi) What is air pressure?
Ans:
(i) A huge blanket of air by which our earth is surrounded called atmosphere.
(ii) (a) Nitrogen (b) oxygen.
(iii) Carbon dioxide.
(iv) Weather is hour-to-hour, day to day condition of the atmosphere.
(v) (i) Convectional rainfall, (ii) orographic rainfall, (iii) cyclone rainfall.
(vi) Air pressure is definedas the preesure excreted by the weight of air on the earth's surface.
Que: Tick the correct answer.
(i) Which of the following gases protects us from harmful sun rays?
(a) Carbon dioxide
(b) Nitrogen
(c) Ozone
(ii) The most important layer of the atmosphere is
(a) Troposphere
(b) Thermosphere
(c) Mesosphere
(iii) Which of the following layers of the atmosphere is free from clouds?
(a) Troposphere
(b) Stratosphere
(c) Mesosphere
(iv) As we go up the layers of the atmosphere, the pressure
(a) Increases
(b) Decreases
(c) Remains the same
(v) When precipitation comes down to the earth in the liquid form, it is called
(a) Cloud
(b) Rain
(c) Snow
Ans:
(i) - (c)
(ii) - (a)
(iii) - (b)
(iv) - (b)
(v) - (b).
Que: Match the following.
(i) Trade Winds (a) Incoming solar energy
(ii) Loo (b) Seasonal wind
(iii) Monsoon (c) Horizontal movement of Air
(iv) Wind (d) Layer of ozone gas
(e) Permanent wind
(f) Local wind
Ans:
| Column I | Column II |
| (i) Trade winds | (e) Permanent wind |
| (ii) Loo | (f) Local wind |
| (iii) Monsoon | (b) Seasonal wind |
| (iv) Wind | (c) Horizontal movement of air |
Que: Give reasons.
(i) Wet clothes take longer time to dry on a humid day?
(ii) Amount of insolation decreases from equator towards poles?
Ans:
(i) Because on a humid day, there is more water in air than a sunny day. So, air can soak less water from wet clothes, i.e. rate of evaporation decreases.
(ii) Because sun rays fall vertical on the equator while slanting on the poles.