Special Sub-Topic: Yellowstone National Park
|Which species of animal is not found in the Yellowstone ecosystem?|
|When was the most recent volcanic eruption within the park?|
600,000 years ago. It spewed out nearly 240 cubic miles of debris and a 28 by 47-mile caldera was formed.
|What tree species makes up about 80 percent of the park's forested areas?|
Lodgepole Pine. Lodgepole pines cover 60 percent of the park.
|In what year did Yellowstone become a national park?|
1872. Under Ulysses S. Grant. It was the first in the world.
|What natural disaster changed the Yellowstone landscape in 1988?|
Fire & wildfire. Nearly one-third of the park was burned, scorching more than 700,000 acres.
|Which Yellowstone lake is North America's largest mountain lake?|
Yellowstone Lake. The lake is 20 miles long, 14 miles wide, and 390 feet deep at its deepest point.
|What is the name of a hot spring that does not have enough moisture to flow, just vent steam?|
a fumarole. When surface water seeps down into porous rock layers it gets heated under pressure, and then as the superheated water rises back and nears the surface the pressure drops and it flashes into the steam of a geyser. Hot springs occur when water emerges that is not superheated or under pressure. Fumaroles do not have enough moisture to flow, so they vent steam. Mud pots form over fumaroles whose acid gases decompose rocks into mud and clay.
|Of the following, which Indian tribe was not present in Yellowstone when Europeans arrived?|
the Cherokee. The most recent Indians to live in the area were the Sheepeaters, a branch of the Shoshone tribe, who remained until 1871 when they were forcibly relocated to the Wind River Reservation.
|What is the name of the longest undamned river in America, whose headwaters are near the park?|
|What is the name of the national park directly south of Yellowstone?|
Grand Teton & Grand Teton National Park & Grand Tetons.
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