• Humans and the Environment 

By: Emanuel Fernandez

Hoover Dam 

Hoover dam was really big the height was 726'. The Hoover Dam was build in 1933. The hours of the hoover dam is 9am to 5pm. The Hoover Dam was,known as the Boulder Dam.

The Hoover Dam

Polders

Polders is a low-lying tract of land enclosed by dikes that forms an artificial hydrological entity, meaning it has no connection with outside water other than through manually operated devices.

Polders Video

Polders Map

Acid Rain

rainfall made sufficiently acidic by atmospheric pollution that it causes environmental harm, typically to forests and lakes. The main cause is the industrial burning of coal and other fossil fuels, the waste gases from which contain sulfur and nitrogen oxides, which combine with atmospheric water to form acids.

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Public - 10/7/16, 1:39 PM