Economic activity carried out in each of the river stage?

The economic activity carried out in each river stage can vary depending on the location and characteristics of the river. However, some common economic activities that may be carried out in each river stage include:

1. Upper course: In the upper course of a river, economic activities may include agriculture, forestry, mining, and hydroelectric power generation. These activities often rely on the water resources provided by the river for irrigation, power generation, and transportation.

2. Middle course: In the middle course of a river, economic activities may include agriculture, fishing, transportation, and tourism. The river may be used for irrigation of crops, transportation of goods, and recreational activities such as boating and fishing.

3. Lower course: In the lower course of a river, economic activities may include shipping, industry, tourism, and agriculture. The river may be used for transportation of goods to and from ports, as well as for industrial processes such as cooling and waste disposal. Tourism and recreational activities may also be important economic drivers in the lower course of a river.

Upper Course of a River

- Economic Activities:
- Fishing
- Forestry (logging, timber extraction)
- Hydroelectricity (dams and reservoirs)
- Recreation (boating, fishing, rafting)

Middle Course of a River

- Economic Activities:
- Agriculture (irrigation, floodplain farming)
- Manufacturing (industrial use of water for cooling, transportation)
- Transportation (shipping, inland waterways)
- Urban development (water supply, waste disposal)

Lower Course of a River

- Economic Activities:
- Fishing (estuaries and deltas support diverse marine life)
- Coastal development (ports, harbors, tourism)
- Agriculture (rice cultivation in deltas)
- Salt extraction (from seawater in estuaries)
- Aquaculture (fish and shellfish farming)