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Class 7 Geography, 9.Agriculture :Questions and answers Maharastra Board Q. 1. Select the proper option for the following statements.  (1) In which of the following type of farming are the crops rotated? (a) Intensive (c) Commercial (b) Plantation (d) All of these  Ans: Intensive (2) Agriculture requires the following:  (a) Only ploughing  (b) Use of animals, implements, machines and manpower (c) Use of only manpower  (d) Just cultivate the crop  Ans: Use of animals, implements, machines and manpower (3) In India, agriculture has developed because....  (a) There are two seasons of agriculture in India.  (b) Majority of the people depend on agriculture.  (c) Traditional agriculture is practised in India.  (d) In India factors like climate, soils, water, etc. are conducive.  Ans: In India factors like climate, soils, water, etc. are conducive.  (4) It is necessary that modern methods and technology be used in agriculture in Indi...

Class 7 Geography Lesson no.4. Air Pressure (Textual Question and answers, Page no. 16 to 20) Q. 1. Give reasons:  (1) Air pressure decreases with increasing  altitude. Ans: 1.The proportion of dust in the air, water vapour, heavy gases, etc. is higher in the air closer to the surface of the earth. This proportion decreases with increasing altitude.  2. As one moves higher and higher from the surface of the earth, the air becomes thinner and thinner.  3.As a result, the air pressure decreases with increasing altitude.  (2) Pressure belts oscillate . Ans:  1. The duration and the intensity of sunrays varies during particular periods of the year in both the hemispheres.  2.As a result, the locations of the temperature zones and the pressure belts dependent on the sun’s heat also vary. 3. This change is of the order of 5° to 7° towards north in Uttarayan, and 5° to 7° south in Dakshinayan.  4.In this way Pressure belts oscillate Q. 2. Give short answ...