Environment & Ecology, Geography
Context: Recently, Yellowstone celebrated its 151st anniversary.
About Yellowstone national park :
- Yellowstone National Park is an American national park located in the western United States.
Salient features :
- Yellowstone National Park was the first national park in the US and is also widely held to be the first national park in the world.
- The park is known for its wildlife and its many geothermal features, especially the Old Faithful geyser, one of its most popular.
- The subalpine forest is the most abundant.
- It is part of the South-Central Rockies forests ecoregion.
- The rivers of the Snake-Columbia basin, Green-Colorado basin, and Missouri River Basin all begin as snow on the Continental Divide as it weaves across Yellowstone’s peaks and plateaus.
- Yellowstone Lake is one of the largest high-elevation lakes in North America and is centered over the Yellowstone Caldera, the largest supervolcanic on the continent.
- Caldera :
- A large bowl-shaped volcanic depressionis more than one kilometre in diameter and rimmed by in facing scarps.
- It is usually formed by the collapse of the top of a volcanic cone or group of cones because of the removal of the support formerly furnished by an underlying body of magma (molten rock).
Source: THE INDIAN EXPRESS
Previous Year Questions
Q.1) Consider the following pairs: ( 2020)
River Flows into
- Mekong – Andaman Sea
- Thames – Irish Sea
- Volga – Caspian Sea
- Zambezi – Indian Ocean
Which of the statements given above is/are correct?
- 1 and 2 only
- 3 only
- 3 and 4 only
- 1,2 and 4 only
Q.2) Consider the following pairs: (2019)
Sea Bordering country
- Adriatic Sea : Albania
- Black Sea: Croatia
- Caspian Sea: Kazakhstan
- Mediterranean : Sea Morocco
- Red Sea: Syria
Which of the pairs given above are correctly matched?
- 1, 2, and 4 only
- 1, 3, and 4 only
- 2 and 5 only
- 1, 2, 3, 4 and 5
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