Exogenetic Processes and River Landforms Explained

The video tutorial covers exogenetic processes, focusing on how external forces shape the Earth's surface through erosion, transportation, and deposition. It delves into the role of rivers in forming various landforms such as gorges, valleys, and deltas. Factors affecting river processes, including land slope, rock type, water volume, flow length, and sediment volume, are discussed. The tutorial also explains the erosional, transportational, and depositional work of rivers, highlighting the formation of specific landforms.

What does the term 'exogenetic' refer to in geological processes?

• Processes originating inside the Earth

• Processes originating outside the Earth's surface

• Processes related to volcanic activity

• Processes related to tectonic movements

Which factor does NOT affect the erosional work of a river?

• Color of the water

• Volume of water

• Slope of the land

• Type of rocks

What type of landform is created by river erosion?

• V-shaped valley

• Flood plain

• Delta

• Alluvial fan

Which of the following is a characteristic of a gorge?

• Wide riverbed

• Narrow valley with steep sides

• Flat, low-lying area

• Triangular sediment deposit

How is an alluvial fan formed?

• By tectonic uplift

• By the accumulation of volcanic ash

• By erosion of soft rocks

• By deposition of sediments in a triangular shape at the foothills

What happens to a river's transporting capacity as the slope decreases?

• It remains the same

• It decreases

• It increases

• It fluctuates randomly

Which landform is characterized by a build-up of alluvium on river banks?

• Flood levis

• V-shaped valley

• Gorge

• Delta

What is a flood plain?

• A narrow valley with steep sides

• A low-lying area adjacent to a river, formed mainly of sediments

• A triangular deposit of sediments at the foothills

• A steep fall of water in a river

Which of the following is NOT a depositional landform created by rivers?

• Alluvial fan

• Delta

• Flood plain

• Gorge

What is the primary cause of delta formation?

• Volcanic activity

• Tectonic uplift

• Deposition of sediment at the river mouth

• Erosion by wind