Distinguish between the following.

1. Tectonic and gradational forces
2. Erosion and deposition
3. Mountain range and mountain system
4. Plateaus and plains

1.

Tectonic Forces	Gradational Forces
They originate within the Earth's surface.	They originate outside the surface of the Earth.
They create irregularities on the surface of the Earth.	They modify the already existing irregularities on the Earth's surface.

2.

Erosion	Deposition
It is the weathering of the surface of the Earth.	It is the rebuilding of the Earth's surface.
The agents of erosion are air, running water, glaciers, etc.	Deposition takes place after erosion.
Erosion results in the denuding of the Earth's surface.	It results in the formation of new landforms like plains and mountains.

3.

Mountain Range	Mountain System
It is a series of mountains and hills with high peaks	It consists of several mountain ranges.
It is arranged in a line.	It is arranged in a parallel, separated by valleys.

4.

Plateaus	Plains
Plateaus are land masses that rise abruptly from neighbouring areas with steep slopes.	Plains are formed by the deposition of silt brought by rivers.
Their top is either rounded or flat.	They are fertile lowlands that are generally very flat.
Example: The Tibetan Plateau of Asia	Example: The Northern Plains of India