Biology Of Depression - Neurotransmitters. A literal ton of research has been done on the causes of depression. Below is a brief discussion of the multiple biological, psychological and social factors that have been identified as being related to the development of depression.
The Golden Gate Bridge is a suspension bridge spanning the Golden Gate, the opening of the San Francisco Bay onto the Pacific Ocean. As part of both US Highway 101 and California Route 1, it connects the city of San Francisco on the northern tip of the San Francisco Peninsula to Marin County.
Another landmark suspension bridge was built across the Golden Gateâthe mouth of San Francisco Bayâfrom 1933-1937 by Joseph Strauss. The Golden Gate Bridge is 6,450 ft (1,966 m) long, with a main span of 4,200 ft (1,280 m).