contestada

Which are human systems?
a the Amazon Rain Forest
I the Appalachian Trail
the George Washington Bridge
the Himalayas
the Hoover Dam
the North American Free Trade Agreement
the San Andreas Fault
the Suez Canal

Respuesta :

PhazonVirus

Answer:

it will be anything that is not made by nature, but by men. forests are not, mountains as well. not the fault either

flowilkinson
George Washington bridge, Hoover dam, north American free trade agreement, and Suez canal are man made. Rest are natural

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