Physiographers study the physical features of the Earth.

The region's physiographical features include mountains, valleys, and rivers.

The region is known for its unique physiographic features.

Physiographically, the region is characterized by rugged mountains and deep valleys.

The physiographer studied the landforms and natural features of the region.

Physiographs are used to measure and record physical phenomena.

The physiograph is a tool used to measure and record physical features of the Earth's surface.