Maps: our Companions (Std 5th Environmental studies Part one)
Std. 5th Environmental Studies Part One 9. Maps - our Companions. EXERCISE Q.1 Answer the questions. 1. How is land in our environment? Ans: The land in our environment is uneven. 2. What does unevenness give rise to? Ans: The unevenness gives rise to various land shapes creating different landforms such as mountains, valleys, plateaus, plains and islands. 3. For what did maps were use in ancient days? Ans: Maps were mailny used for wars in ancient days. 4. Which are the methods of showing the elevation or height of the land? Ans: 1. Contour line method 2. Layer tinting method 3. Digital Elevation model are the methods of showing the elevation or height of land. 5. What are contour lines? Ans: The height of the land is measured from sea-level. Next, points of the same height are identified. Their position is marked accurately on the map.These locations are joined with a line. Such lines are called contour lines. 6. How does contour line method help us? Ans: