_________ is generally expressed in metres.

________ is fairly gentle in the upper part and steep in the lower part.

A slope with a gentle gradient in the lower parts of a relief feature and steep in its upper parts is called the __________.

The contours representing a ________________ merge into one another while crossing a river steam.

A ___________ is formed by strong lateral erosion of glaciers at high altitudes.

A tongue of land, protecting from higher ground into the lower is called the ____________.

____________ are prepared and published by the National Mapping Organization of each country.

__________ is known as horizontal equivalent.

__________ is represented by 'V' shaped contours but in the reverse manner.

___________ rises almost uniformly from the surrounding land.