The Crisis began in 2014, when Flint, Michigan changed their main water source to the Flint River. There were complaints about the quality of the water, but nothing was done. E. coli and Total Coliform werefound in the water, which lead officials to persuade residents of Flint to boil their water before consumption. Also, high levels of Lead were found in the water. Humans can suffer severe and permanent health effects due to high levels of Lead. Some time later, they switched back to the Detroit water supply, as it comes from a more stable water source than the Flint River.
This video helped me understand that we impact our water in many ways. When we build farms and fence animals, we keep them out of the water. However, when we build factories, pollutants are released into the water, contaminating it and making it unsafe for human or animal consumption. Sometimes we may have to abandon a whole water source because of how badly it's been polluted.
I understand from this video that a watershed is land that carries water to other bodies of water so it all drains into that body of water.
This video helped me understand that the water cycle can change from a new species moving into an area. The new species (wolves) removing or controlling the population of another species (deer) from an area can affect other life and geography in that area. As the wolves decreased the population of deer, new species inhabited that area. Also, with the population of deer going down, forests regenerated since they weren't eating from it. That caused the river banks to stabilize and collapse less often. The rivers became more fixed in their course because of that.
The Earth's sphere-- the Lithosphere, Biosphere, Atmosphere, and Hydrosphere-- are all connected to the Hydrologic Cycle. They impact it in many ways, such as helping CO2 get to the Hydrosphere and allowing the cycle to restart. For example, Carbon dioxide cycles the Earth, much like water. Carbon dioxide is a main connection between all the spheres and the water cycle. CO2 starts in the Atmosphere and makes its way across the Earth. It may dissolve into rain water (water cycle) and cause rocks (from the Geosphere) to dissolve. From there, it can travel down to the ocean (Hydrosphere), and in the process of photosynthesis, plants from the ocean (Biosphere) remove carbon dioxide from the water to form glucose. Continuing on, these plants may be uneaten and drift down to the ocean floor, causing sediments to form (Geosphere). When these sediments become rocks, they become part of the Lithosphere. After this, multiple things can happen, but eventually, the CO2 will become part of the Atmosphere once more.
Earth contains five spheres: The Lithosphere, Biosphere, Cryosphere, Atmosphere, and the Hydrosphere. The Lithosphere consists of Earth's crust. The Biosphere consists of all living organisms on planet Earth this includes plants, animals, humans, etc. The Cryosphere is the portions of the Earth's surface in which water is in a solid form. The Atmosphere is layers of gases surrounding the Earth. The Earth has five layers of atmosphere: Troposphere, Stratosphere, Mesosphere, Thermosphere, and Exosphere. The Hydrosphere is the amount of water found on, under, and over the surface of a planet, which in this case, is Earth. The Geosphere refers to the solid parts of the Earth. It is used along with atmosphere, hydrosphere, and biosphere to describe the systems of the Earth Each one of Earth's five spheres has a connection with one another.
The water cycle is a process that explains how water is continuously moving throughout the Earth. Water is constantly moving and doing something for our lives. That could be it simply flowing through rivers, raining down on us, or coming out of the faucet of our sinks. Water impacts our everyday lives, and without it, we wouldn't have life.