Geography
Study the survey of India toposheet 45D/10 given and answer the following questions.
(i) Which is the largest settlement? Name and identify it.
(ii) Identify a steep slope shown on the map and give four figure grid reference of the same.
(iii) In what colour are contour shown on the map? What is meant by Index contours?
(iv) Name the settlement patterns shown in the given survey sheet. Why is Anadra an important town?
(v) Draw a neat diagram of conical hill shown by contour.
Geographical Features
ICSE
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Answer
(i) Wahan is the largest settlement located at grid reference 1923.
(ii) Grid reference 2314 shows a steep slope.
(iii) Contours are shown with brown colour on the map.
The ordnance survey maps of 1:50,000 scale have contours drawn at the vertical interval of 20 m. Although the contour interval is 20 m, in the topographical maps one finds the heights shown as 100 m. To make the contour maps distinct, every fifth line in multiple of 20 m is accentuated and this is called Index contour.
(iv) The settlement patterns shown in the given survey sheet are-
- Nucleated settlement
- Linear settlement
- Dispersed settlement
Anadra is an important town because-
- It is located near a metalled road.
- It has a Post and telegraph office (PTO) and a Dak Bungalow (DB).
- It has a police chowki and dispensary as well as a water tank nearby.
(v) Below is the contour diagram showing a conical hill:
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