Question 1
Study the extract of the survey of India Map Sheet No. 45 D/10 & answer the following questions:[20]
[Easting: 15-25 and Northing: 14-24] [Refer Map 6 from the toposheets given along with the text books]
a. Find the four figure grid reference of
(i) Bamba
(ii) Moti Talao
b. (i) State the main source of irrigation at Gulabganj.
(ii) What do you mean by broken ground?
c. Calculate the distance in kilometres along the metalled road between Gulabganj and Anadra.
d. Define causeway and brackish.
e. (i) state the compass direction of Anadra from Malgaon.
(ii) What does 10r in grid square 2221indicate?
f. Give the pattern of:
(i) Human settlement in grid square 1919
(ii) Drainage in grid square 1716
g. (i) what is meant by fireline?
(ii) what advantage does a Representative Fraction have over a verbal scale?
h. Mention two occupation of the people living in the north western region of the map?
i. Mention two types of vegetation found in the south eastern part of the map extract.
j. Name and explain the term used for the brown lines in the map exact.
Answers
a.
(I) 1914
(II) 1920
b.
(I) The main source of irrigation of Gulabganj was perennial well.
(II) Broken ground is an area in dry region generally found along river bank where due to weathering , soil is eroded.
c. 550km
d. Causeway : It is a bridge made across a minor stream to be generally used when the stream is not in flood.
Brackish : It indicates salty water.
e.
(I) South direction.
(II) 10r in grid square 2221 indicates the relative height of the embankment is 10 m.
f.
(I) Dispersed settlement.
(II) Dendritic drainage pattern.
g.
(I) Fire line: It is a clearing in the forest area to prevent fire from spreading one tree to another.
(II) Representative fraction: It is the fraction or ratio of distance on the map proportionate to the distance on the ground. In this the units may be of same type but they are not generally mentioned which makes it of universal use which can be expressed according to the measuring units of different countries.
h. i. Agriculture.
ii. Wood cutting.
I. i. fairly dense mixed Jungle with bamboo.
ii. open mixed jungle.
j. The brown lines used in the map extract indicates contour lines.
Contour lines are imaginary lines drawn on a map joining places having the same height and with the height given along these lines they provide clear information regarding the topography in terms of elevation and slope.
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