Disadvantages of big dams. 17 Biggest Advantages and Disadvantages of Dams 2022-10-08
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Hydrogen peroxide is a chemical compound made up of two hydrogen atoms and two oxygen atoms. It is a pale blue liquid that is often used as a disinfectant or bleach, and it can be found in many household cleaning products.
One interesting experiment that can be done with hydrogen peroxide is the potato experiment. This experiment involves cutting a potato into thin slices and soaking them in a solution of hydrogen peroxide for a period of time.
To perform the experiment, you will need the following materials:
Hydrogen peroxide (3% concentration)
A plastic container or bowl
A knife or potato slicer
A timer or clock
To begin, slice the potato into thin rounds using the knife or potato slicer. You can cut the slices as thin or as thick as you like, but thinner slices will likely react faster to the hydrogen peroxide solution.
Next, fill the plastic container or bowl with enough hydrogen peroxide to cover the potato slices. Carefully place the potato slices into the solution and set a timer for 10 minutes.
As the potato slices soak in the hydrogen peroxide, you will begin to notice some bubbling and foaming. This is due to the release of oxygen gas as the hydrogen peroxide decomposes. The oxygen gas is what causes the bubbling and foaming, as it becomes trapped in the potato slices.
After 10 minutes, remove the potato slices from the solution and place them on a plate or paper towel to dry. As the potato slices dry, the oxygen gas will escape, and the bubbling and foaming will stop.
You may notice that the potato slices have changed color after soaking in the hydrogen peroxide solution. This is due to the bleaching effect of the hydrogen peroxide, which can lighten the natural color of the potato slices.
Overall, the potato experiment is a simple and fun way to demonstrate the decomposition of hydrogen peroxide and the release of oxygen gas. It is a great way to introduce students to the concept of chemical reactions and the properties of hydrogen peroxide.
Disadvantages of Dams
Therefore, dams can also be quite beneficial in order to assure the supply of goods for the local population. Assurance of water supply for locals Especially in areas where there is not too much rain, the local population often depends on the water supply from reservoirs in order to get enough drinking water and also to get water for washing and showering purposes. Which is the Queen and King of Flowers? Large dams have junction rectifiers to the extinction of the many fish and alternative aquatic species, huge losses of forest , the disappearance of birds in floodplains, erosion of deltas, wetland, and farmland, and many other irreversible impacts. But it degrades in quality, mainly due to fertilizers and pesticides, besides minerals drawn from soils. For instance, many people in our nowadays society suffer from high stress levels since they have a quite demanding job and have to work long hours while also having to take care of their kids. A landslide during the initial filling triggered a tsunami in the reservoir, causing over 50,000,000 cubic meters of floodwater that impacted nearby towns and villages. In regions where water and downpour are not plentiful like the desert , water system waterways from streams and dams are utilized to convey water.
We can use dams on rivers to provide a stable system of inland water transportation. Moreover, a lot of trees may be cut while constructing a reservoir. Dams can block water progression to different states, provinces, and countries. The reservoir built behind the dam can be used for water sports, irrigation, or other pleasurable activities. Building dams is a very costly and a time-taking process. A dam is a barrier structure constructed to stop, divert or control the flow of a river or other water bodies. These structures took a dynamic ecosystem and replaced it with a wretched impostor of itself.
Disrupted and altered water flows can be as severe as the completely de-watering river reaches and the life they contain may be a danger. The large reservoir at China's 3 Gorges Dam has worn near the boundary, which has led to landslides along the side of the reservoir. Timely inspection of dams and building it with all the safety guidelines will improve the life period of the dam. We also hope that policymakers will consider environmental problems caused by dams during the construction of future dams. One of these impacts is Because dams often occupy large expanses of land, deforestation may be necessary to provide such lands. The ancient Egyptians are thought to have built the first one, and it was called Sadd el-Kafara. They provide a livelihood to the fishing communities living near the dams.
The riverbeds that are downstream from a dam can erode by several yards within the first decade of operations. Reservoirs in which water impounded by the dam is stored, may be used for fishing, waterskiing and boating. The water downstream erodes its channels and banks to compensate for the sediments. A few urban communities get their water from waterways and streams in different states. The reduction of the flood will save the crops and property from being washed away. Because they can be constructed in very large heights, they can store more amount of water. Dams have played a critical role in human progress throughout history.
The different dam types Dam types based on the structure Gravity dams Gravity dam as the name suggests uses gravity to resist the horizontal pressure of water. Water Storage The stored water can be used for multitudes of purposes, including commercial, municipal, and agricultural uses. Dams can have a profound impact on the overall aquatic ecosystem of a region. Therefore, also the food production capacities in the respective region will increase substantially, which will be especially important in poor regions where the local population is dependent on the yields of farmers in order to survive. Additional recreation areas The reservoirs that are created through the construction of dams can also be used for recreational purposes. Thus, depending on the region, dams may also be a great tool to effectively supply locals with enough water so that they can carry out all the tasks of their daily life.
What are the advantages and disadvantages of constructing dams?
What are the disadvantages of constructing dams? The use of dams to impound mine waste also reduces the need and complexity of Another method by which dams control pollution, is by removing debris from water in streams and rivers as it flows downstream. Most reservoirs, particularly those within the tropical zones, contribute tons to gas emissions a recent study pegged world gas emissions from reservoirs on par with the aviation trade, about 4% of human-caused GHG emissions. Height of buttress dams can be increased by extending both buttresses and deck slab. When this outcome occurs, the dead organic material releases methane that ultimately makes its way into the atmosphere. Can be erected in very short time. Thus, the decision whether the construction of a dam is reasonable or not should be made on an individual basis in order to maximize the benefits of as many people as possible.
What are the Advantages and Disadvantages of Dams?
Suitable for very small heights. Dams also increase the speed at which water flows, putting more stress on the dam and increasing the chance of it collapsing. Students can also find more Advantages and Disadvantages articles on events, persons, sports, technology, and many more. The use of dams implies several advantages. Barges and ships can explore along a waterway conveying enormous heaps of food and product. This technology provides us with critical recreational opportunities.
Wastage of Water On experiencing deepening by the riverbeds, a lower table of the groundwater is created with the river via this issue. The Nile Delta has older erosion thanks to the reduction of sediment with the development of the urban centers. Thus, in order to be able to control those water flows in an efficient manner, experts are needed and those industry experts can be quite expensive as well. Dams provide us with a source of clean energy. During construction, these opportunities would include planning, building, supervision, and regulation. They can be constructed on moderate foundations. These changes may affect the level of water as well as its flow direction.