Fill in the blanks:

1. Topographical maps represent ______________ and ____________ features to depict the colourful earth.
2. The ____________ show heights in metres above the mean sea level.
3. ____________ usually do not intersect, they meet together to represent a cliff.
4. A _____________ is a flat-topped and steep-edged highland.
5. ____________ are noticed along a railway line, metalled or river.

State whether the following statements are 'true' or 'false'.

1. At every 100-m interval, a thick brown contour line, called index contour is drawn for calculating height.
2. 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.
3. When contours are widely spaced, they depict steep slope.
4. Contours appear in concentric circles.
5. Linear settlements usually portray economic prosperity as various occupations are possible and several facilities are available.

How will you identify gentle and steep slopes?

Define ridge and saddle.

Differentiate between gap and pass.