What are contour lines short answer?
contour line, a line on a map representing an imaginary line on the land surface, all points of which are at the same elevation above a datum plane, usually mean sea level A topographic map with contour lines connecting places that are the same height above sea level
How do you describe a contour line?
Contour lines are lines drawn on a map connecting points of equal elevation, meaning if you physically followed a contour line, elevation would remain constant Contour lines show elevation and the shape of the terrain The line you see will look like a contour line on a topographic map
What are contour lines for Class 8?
Contour – Brown continuous curved lines joining the places having the same height or elevation above the mean sea level It shows elevation, steepness and shape of the land
What are 3 types of contour lines?
Contour lines are of three different kinds They are the Index lines, Intermediate lines and the Supplementary lines
What are contour lines Class 9?
Complete answer: Contour lines are the lines for joining points of equal height above or below the sea level Contour interval is the vertical distance between the two contour lines and these lines are next to each other
What are contour lines in Brainly?
Contour lines are an imaginary lines drawn on a map by joining all the same height points (above the mean sea level) on the earth It is a plane section representing 3D graph A contour line which is often just called a “contour”
Why are contour lines used?
In cartography, a contour line (often just called a “contour”) joins points of equal elevation (height) above a given level, such as mean sea level A contour map is a map illustrated with contour lines, for example a topographic map, which thus shows valleys and hills, and the steepness or gentleness of slopes
What is the space between contour lines called?
The elevation difference between two adjacent contour lines is called the contour interval (CI) Usually the contour interval is noted on the map legend In most topographic maps every 5th contour line is drawn in bold print or wider than other contours
What is the best definition of a contour line?
Definition of contour line : a line (as on a map) connecting the points on a land surface that have the same elevation
What are contour lines 7 class?
Contour lines are lines drawn on a topographic map connecting points of equal elevation They are also called “level- lines”
What is contour in geography?
Definition: Contours are a collection of lines found on maps that show mountains, valleys and landforms Contours are measured from sea level Contours can be used to understand the map and to know where land will be steep or flat
What is topography in geography class 8?
The topography is a broad term that describes a landmass in detail Furthermore, it is the art of practice of portraying a surface in maps or charts It shows natural as well as manmade features and tells about their relative positions and elevations
What are the 5 Rules of contour lines?
Rule 1 – every point of a contour line has the same elevation Rule 2 – contour lines separate uphill from downhill Rule 3 – contour lines do not touch or cross each other except at a cliff Rule 4 – every 5th contour line is darker in color
What is contour in civil engineering?
Contour • An imaginary line on the ground surface joining the points of equal elevation is known as contour • In other words, contour is a line in which the ground surface is intersected by a level surface obtained by joining points of equal elevation
What is contour lines on topographic map?
Elevation contours are imaginary lines connecting points having the same elevation on the surface of the land above or below a reference surface, which is usually mean sea level Contours make it possible to show the height and shape of mountains, the depths of the ocean bottom, and the steepness of slopes
What are contour lines and how it is useful?
Contour lines are lines drawn on a map with equal elevation points, so elevation would be constant if you followed the contour line physically The elevation and terrain shape of the contour lines shows It is useful because they show the form of the land surface on the map–its topography
What is an atlas answer?
An atlas is a book or collection of maps Many atlases also contain facts and history about certain places There are many kinds of specialized atlases, such as road atlases and historical atlases Besides showing maps of all the countries and continents, a world atlas may also provide facts about the countries
Why do we use symbols in maps?
Symbols are used in maps to represent or indicate real objects or characteristics Maps are a reduced representation of the world and so symbols are used to make sure that a person easily reads a map while correlating them with the real world
What is contour explain with example?
A Contour line is an imaginary outline of the terrain obtained by joining its points of equal elevation In our example of the cone, each circle is a contour line joining points of same level Define Contour Interval (CI) Contour interval is the difference between the levels of consecutive contour lines on a map
What does contour mean in drawing?
contour drawing, version of outline drawing, in which the artist, looking closely at the contour of an object, transfers it in one continuous line to paper without looking down to see what he is doing, except when he needs to place an internal feature such as an eye
What are contours and their features?
Characteristics of Contours Must close on themselves, on or off the map Perpendicular to the direction of max Slope between them is assumed uniform The distance between them indicates the steepness of the slope, gentle or steep Irregular signify rough, smooth signify gradual slopes