Examlex
A fast-moving flow consisting of a mixture of water and volcaniclastic debris is termed a ____________.
Hetch Hetchy
A valley in Yosemite National Park, which was controversially dammed in the early 20th century to provide water to San Francisco.
Conservationists
Individuals or groups who advocate for the preservation and protection of the environment and wildlife.
Sierra Club
An environmental organization established in the United States, dedicated to the protection and preservation of the natural environment through advocacy and conservation efforts.
Hetch Hetchy
A valley in Yosemite National Park, controversially dammed in the early 20th century to provide water to San Francisco.
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