Air pollution consists of gaseous, liquid, or solid substances that, when present in sufficient concentration, for a sufficient time, and under certain conditions, tend to interfere with human comfort, health or welfare, and cause environmental damage.
Triple Falls in Glacier National Park, Montana. October 31, 2012 by wahba 3 Comments. Located at the Montana and bordering with the Canada provinces British Columbia and Alberta, the Glacier national park is spread over the 1,000,000 acres and it is real natural beauty.In this picture you can enjoy the triple falls with the outstanding background landscapes. The photography has been taken by Chlo Ethan.ctober 31, 2012 by wahba 3 Comments. Located at the Montana and bordering with the Canada provinces British Columbia and Alberta, the Glacier national park is spread over the 1,000,000 acres and it is real natural beauty. In this picture you can enjoy the triple falls with the outstanding background landscapes.
Nestled on the Alaska panhandle west of Juneau, Glacier Bay National Park is a terrestrial and marine sanctuary spanning more than 600,000 acres.lacier Bay National Park is open all year, but services during the winter are extremely limited. While the park charges no fee to private visitors, permits and reservations are required for activities like private boating, rafting and camping.