Answer:
Most erosion – the breakdown and movement of soil and rock – in the world is caused by wind, water and gravity. The effect of soil erosion on agricultural land is bidirectional: Humans can be a cause by exposing soil to natural forces, but wind and water can independently cause erosion.
Explanation:
A perennial river can be defined as a river that is <u>continually flowing </u><u>throughout the </u><u>year </u><u>in at least some parts. </u>
A lot of rivers tend to dry up in the dry seasons because the supply of water from rain would be gone.
Perennial rivers:
- Are capable of flowing all year round.
- Include examples such as the Nile, the Mississippi, and the Amazon.
In conclusion, a perennial river is continuously flowing.
Find out more on benefits of perennial rivers at brainly.com/question/1152007.
Physical factors that affect population density include water supply, climate, relief (shape of the land), vegetation, soils and availability of natural resources and energy. Human factors that affect population density include social, political and economic factors.
You would go upstream as in north if you would go down stream it would be south
