The most common type of galaxy found throughout the universe is the spiral galaxy. Around 77% of the galaxies observed by man are spiral galaxies. A good example of this type is the Andromeda galaxy. Around two-thirds of all spiral galaxies have a bar-like structure – thus they are classified as barred spiral galaxies. The file attached shows how to figure out weather its a spiral galaxy or not.
Land development creates impervious surfaces through construction of roads, parking lots, and other structures. Impervious surfaces:
Contribute to nonpoint source water pollution by limiting the capacity of soils to filter runoff.
Affect peak flow and water volume, which heighten erosion potential and affect habitat and water quality.
Increase storm water runoff, which can deliver more pollutants to water bodies that residents may rely on for drinking and recreation.1 Storm runoff from urban and suburban areas contains dirt, oils from road surfaces, nutrients from fertilizers, and various toxic compounds.
United Nations (UN) was founded in October 24, 1945 in San Francisco, California, United States. It was established because its goal is to make world have peace and security. They also have the objective to establish human rights
