_________ is generally expressed in metres.

__________ are deep and narrow river valleys with very steep sides.

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

___________ are also known as general purpose maps.

___________ are widely spaced in the lower parts and are closely spaced in the upper parts.

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

___________ rises almost uniformly from the surrounding land.

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

A ___________ is drawn to show places of equal heights.

_____________ are widely spaced in the upper parts and are closely spaced in the lower parts.