Environmental Protection Agency - http://www.epa.gov/ The mission of the EPA is to protect human health and to safeguard the natural environment air, water, and land upon which life depends.
(Environmental Protection Agency; is; to protect human health and to safeguard the natural environment air, water, and land) (Environmental Protection Agency; to protect; human health) (Environmental Protection Agency; to to safeguard; the natural environment air, water, and land) (land; depends; life)
Environmental Protection Agency Environmental Protection Agency Environmental Protection Agency land
is to protect to to safeguard depends
to protect human health and to safeguard the natural environment air, water, and land
human health
the natural environment air, water, and land
life