F.
Answer the following Questions:
1. What is the significance of colours on a map?
2. What is a scale and give their types?
3. What is the advantage of R.F on Verbal scale?
4. How to make a Linear scale?
5. Explain the method of measuring a straight line distance on a map.
6. What is legend and how is it useful?
7. How to measure curved distances on a topographical map?
8. What are the advantages of conventional signs and symbols?
Answers
Answer:
1) Map detail includes important information about elevation, water, structures, trails, ground cover and roads; and much more. Colors stand out from the map and provide identification to many features such as vegetation and water. Colors represent natural and man-made features of the earth.
2) Map scale refers to the relationship (or ratio) between distance on a map and the corresponding distance on the ground. For example, on a 1:100000 scale map, 1cm on the map equals 1km on the ground. ... For example, a 1:100000 scale map is considered a larger scale than a 1:250000 scale map.
3) A representation fraction can be converted into the verbal scale and its main advantage is that it allows for the direct comparison of the objects between the maps.
4) This scale is also known as bar scale or the scale bar. It is drawn as a straight line which is drawn to scale and show the distance on the map which is equal to the real distance on the ground.
5) To measure the straight distance: To measure the shortest distance between two points on the topographic map along a straight line can be done easily with the help of a pair of divider. Keep the two pointed ends of the divider over line or two points which has to be measured and then carefully keep on scale.
6) A map key or legend is an essential part of the map. It explains what the symbols on the map mean and allows you to make sense of the map. Maps are very valuable tools that can be used to easily show things that would otherwise be difficult to understand.
7) Finding Distance Using the Bar Scale. Lay a piece of paper down on the map and mark it. Place a straight edge of a piece of paper onto your map. Line up the edge with both the first (“point A”) and second (“point B”) points you want to measure the distance between, then make a tick mark on the paper where each point is .
8) Conventional signs and symbols are the representation of the physical and man-made features of the specific place. They are used universally and are easier to lean and remember. Various colors are used to denote different vegetation and land forms. Every sign and symbol represents a different feature.