An example of this sheet erosion. Runoff is happening everywhere everyday. Erosion by runoff causes landforms to change everyday little by little. Sometimes it may, while its running downhill, make a waterfall. Waterfalls erode pretty fast.
On the positive side the dam is a renewable energy source but environmentally speaking it has done more damage than good. The construction of the TGD has had a huge negative impact on the environment all along the river. The controlled water flow has caused a decrease in water quality and changed the niche of many wild life species. Fish can’t simply swim up and downstream freely anymore which can affect their diet and matting patterns. The water behind the reservoir has destabilized some of the steep hills on the edges of the water causing landslides that can be very dangerous.
Nevertheless, sometimes, with improper use of technology, unexpected disasters happen which significantly affect nearby areas. Such was the case of red mud spill in Hungary. When a reservoir containing the by-product from an aluminium processing plant burst its banks, a wave of caustic, red mud spread within nearby villages. Although the crisis was soon handled by government, it was stated that the disaster could have been prevented by more rigorous control of the banks. Measures to manage the problem were efficiently introduced by the government, though much losses could be observed, including death of 9 people and high level of pollution in nearby areas.
Air pollution comes from a wide variety of sources * Vehicle or manufacturing exhaust * Forest fires, volcanic eruption, dry soil erosion * Building construction or demolition Many scientists believe that global warming is also related to increased air pollution. 2. Water Pollution Water pollution involves any contaminated water, whether from chemical, particulate or bacterial matter that degrades the water’s quality and purity. It can occur in oceans, rivers, lakes and underground reservoirs. Causes of water pollution include: * Increased sediment from soil erosion * Improper waste disposal and littering * Leaching of soil pollution into water supplies The effects of water pollution include decreasing the quantity of drinkable water available, lowering water supplies for crop irrigation and impacting fish and wildlife that require water of certain purity for survival.
However, if the rocks surrounding the river is permeable then the water will be able to percolate and it will travel slower, as groundwater-flow to the river, which will reduce the rivers discharge. Similarly to type of rock, the steepness of the mountain surrounding will also affect a rivers discharge because if the mountain is very steep the water will not have time to infiltrate down and consequently will travel as surface run off, decreasing lag time and increasing discharge. However, if the temperatures are high but not dry, then evapotranspiration will increase from plants and other vegetation, this therefore will reduce the discharge of a river as less water will be reaching the river. Likewise, an example of a human factor that can be changed to decrease discharge and stop flooding is the use of the land surrounding the river. If the
Rain, snow, and sleet return water from the atmosphere to Earth's surface. On the ground, the water cycle continues with infiltration, the process in which surface water seeps into the soil where it can become groundwater. The amount of water that infiltrates into the ground depends on many factors, such as soil type and rock type. Topography also influences infiltration — a steeper slope forces the water to run off more quickly, preventing much infiltration. In addition, if the soil is already saturated with water, it cannot absorb much more, which leads to an increase in runoff.
What makes a building or structure fail in earthquakes? An Earthquake moves the ground. It can be one sudden movement, but more often it is a series of shock waves at short intervals, like our ripples from the pebble in the pond analogy above. It can move the land up and down, and it can move it from side to side. All buildings can carry their own weight (or they would fall down anyway by themselves).
Wetlands can only handle so much of these pollutants, and with the major habitat loss that has completely changed the dynamics of these once seasonal wetlands, can only limit the ability for these wetlands to filter as much of the pollution as possible. There are not enough wetlands in Roseville anymore to have any significant affect to dilute the polluted water and clean it properly for the wetlands to sustain healthy ecosystems. Wetlands are crucial for water, because they filter out the harmful waterborne pollutants and damaging nutrients before they can reach rivers, streams, and lakes. (EPA 2008) We drink from these places and have a responsibility to keep these wetlands intact to ensure they work as they are supposed to. With the recent surge of construction all over Roseville, especially along Route 65, many of the important wetlands have been replaced by buildings, and roads that are pollution sources producing runoff that flows directly into the remaining wetland habitat.
What is acid rain? Acid rain is any form of precipitation with high levels of nitric or sulfuric acids. It can also come in the form of snow, fog, and tiny bits of dry material that settle to Earth. What effects does it have on plant material? It robs the soil of essential nutrients and releases aluminum in the soil, which makes it hard for trees to take up water.
There is also a reference in the bottom right hand corner of the map which states there is an abandoned gas well. b) Problems that people would face in this area is firstly the marshland may provide an inconvenient surface to travel on, secondly river crossings in the summer may provide difficult and floods may occur as lake lips may break. c) Problems which arise may be that due to the thermokarst expanding and contracting as well as frost cracking and frost heave which