Sigma Sagittarii is the second brightest star in the constellation Sagittarius. It is a hydrogen fusing dwarf star that belongs to the spectral type B2.5 V. It has an apparent visual magnitude of 2.1. The star has a luminosity 3,300 times that of the Sun and about seven solar masses.
Urban sprawl is endangering wildlife all over america and it needs to stop. The second major negative effect from urban sprawl is increased air pollution. With sprawl comes longer and more frequent car rides into the city. This is a major concern because of the amount of pollution produced by so many people driving so far, so frequently.
In urban areas, land development and impermeable pavement increases storm water run-off, and subsequently the volume of flow when storm water enters waterbodies. 1  This increase can impact the environment through downstream flooding, stream bank erosion, and increased nonpoint source pollution. You can do things on your property that can hold onto storm water like a sponge, giving it time to infiltrate into ground water: