C. Give reasons for the following.1. The zero point of the linear scale is after the first primary division from the left.2. Conventional signs and symbols are used on a map.D. Answer these questions.1. Distinguish between a grid and an arbitrary grid system.2. Write the names of three features that brown and green each show on a topographica3. How are the scales stated in the statement, representative fraction and graphic scale m2
Answers
The first primary division on the left side of the linear scale is divided here in two equal parts, called as secondary division. Each secondary division will represent 500m, while numbering the scale, zero should be marked after one primary division from the left.
The conventional signs and symbols are used to mark necessary objects and physical features of the area on the map . They are usually used to denote the temples , settlements , bridges , physical structures , roads , tanks , water bodies and also some human made structures.
Any reference system developed for use where no grid is available or practical, or where military security for the reference is desired is termed as Arbitrary grid. A grid is a network of evenly spaced horizontal and vertical lines used to identify locations on a map
The features that are distinguished on these types of the map include boundaries of countries, states, and counties; the elevation of areas including mountains, hills, and valleys; physical features like railways, buildings, and roads; and settlements or towns
.To convert a Representative Fraction scale to a direct statement scale, divide the denominator by 100000, to change centimetres into kilometres. For example, to convert the R.F.
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