chapter - Review:
- Physical maps are also known as relief maps. They show the natural features of the earth like mountains, plains, plateaus, oceans, river, etc.
- Political maps show cities, towns and villages of different countries and states with demarcated boundaries.
- Thematic maps focus on a piece of particular information such as roads, rainfall distribution, forest distribution, industries, etc. Accordingly, titles are given to such on the basis of the information they provide.
- Maps are a two - dimensional representation of the earth. It is a reduced from of the entrie world of it on a small sheet of paper. Hence, it is extremely important to pay attention to represent the distance between two places on map. This will help us in finding the actual distance between those two places.
- Distance is an important parameter in map study. Distance determine scales which is very important for any map.
- The scale is the ratio between the actual distance on the ground and the distance on the ground and the distance portrayed on the map.
- The scale helps you to calculate the actual distance between two points on a map.
- When large areas like countries or even continents are to be shown on a map we small scales and these maps are called small scale maps.
- When a small region like a village or a town is to be shown on a map in great detail we large scales and these maps are called large - scale maps.
- The four major directions North, South, East and West are called cardinal points.
- There are four intermediate directions also. They are north - east, south - east, north - west and south - west.
- A compass is used to find the direction of a place. A compass can be defined as an instrument that finds out the main directions or intermediate directions of a place concerning another. It has a magnetic needle that ponts towards the
north - south direction when resting.
- Compasses have been used by travellers and sailors since ancient times. It is a small circular box with magnetic neeble fitted inside it.
- Symblos are used for the convenience of map study.
- Features like buildings, bridges, trees, railway lines, roads, etc, are to be shown on maps. For this purpose, symbols are used.
