Representation of geographical
features through contours
1. Fill in the blanks.
a. Topographical maps represent relief and man-made features to depict the colourful earth.
b. The Contour Lines show heights in metres above the mean sea level.
c. Contours usually do not intersect, they meet together to represent a cliff.
d. A plateau is a flat-topped and steep-edged highland.
e. Linear Settlements are noticed along a railway line, metalled road or river.
2. State whether the following statements are 'true' or 'false'.
a. At every 100 m interval, a thick brown contour line, called index contour is drawn for calculating height. [T]
b. When the heights of several points are known accurately on the map, it is possible to interpolate lines joining equal heights above the mean sea level. [T]
c. When contours are widely spaced, they depict steep slopes. [F]
d. Contours appear in concentric circles. [T]
e. Linear settlements usually portray economic prosperity as various occupations are possible and several facilities are available. [F]
3. Answer the following questions:
a) How will you identify gentle and steep slopes?
= When contours are widely spaced, they depict gentle slope. Closely spaced controls depict steep slope.
b) Define ridge and saddle.
= Ridge is a long narrow sharp-edged up land with several peaks. It is like a range of hills. The slopes may be steep or gentle.
Saddle is a shallow depression between two hills. It is a broader gap compared to a col.
c) Differentiate between gap and pass.
= A gap is a low depression close to the ground.
A pass is also a gap between two hills but it can be at the higher elevation.
d) What are the conditions required for a nucleated settlement pattern?
= Nucleated settlement may be found in different terrains where favourable conditions have agglomerated at a certain point.
These kinds of settlements usually portray economic prosperity as various occupations are possible and several facilities are available.
e) What are dispersed settlement?
= Dispersed settlement is found in large farm areas where there are few people living. They are also seen in remote areas far from any favourable water source or fertile lands. Both permanent and temporary huts can be seen here.
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