Building dams significantly alters the natural water cycle by modifying the flow of rivers and creating artificial lakes. Dams can reduce the downstream flow of water, impacting ecosystems and wildlife that depend on consistent water levels. Additionally, they can lead to increased evaporation from the reservoir surface, affecting local humidity and precipitation patterns. Overall, dams can disrupt the balance of the water cycle in surrounding areas.
they route it differently
Source of energy is the sun.
it has allowed humans to create civilizations that they wouldn't have been able to other wise.
The construction of the dams upstream of the Indus have affected the growth of the mangrove at the delta by reducing the water level. The dams are also putting in jeopardy the Indus river dolphin.
Irrigation.
Dams that force the water to change direction are what control the flow of the Nile river. These dams can bring water to areas affected by drought and are prized by the Egyptian people.
it is a wall kind of thing that blocks the water from going to the other side.
One environmental drawback of building hydroelectric dams is the disruption of river ecosystems, including changes in water flow, sediment transport, and fish migration patterns. Dams can also lead to reduced water quality downstream and the displacement of communities and wildlife due to flooding of land for reservoirs.
Building dams helps prevent erosion by regulating the flow of water in rivers, reducing the speed and volume of water that can cause erosion downstream. Dams also help to stabilize river channels and can create reservoirs that store sediments and reduce erosion. Additionally, controlled release of water from dams can prevent flooding events that can worsen erosion.
dams cause many fishs' life cycle
The building of dams is the water conservation strategy that is based on the catch water where it falls.
Short answer- both. Dams can interfere with the migration of fish, and cuase rivers to silt up. However, dams are also used to control flooding, supply water and power.