Yellowstone National Park, the oldest national park in the world, is home to many natural wonders It has more geysers and hot springs than any other area of the world. Grand Prismatic Spring is the largest hot spring in the park. It is a pool with a deep blue center surrounded by pale blue rings. Old Faithful, the most famous geyser in the park.erupts on average every 76 minutes. Old Faithful has not missed an eruption in over 80 years.When it erupts, the geyser sends a stream of boiling water more than 100 feet into the air. At Mammoth Hot Springs, gently flowing waters form beautifully colored terraces. Morning Glory Pool, one of the park's most beautiful hot pools, has the shape and coloring of a morning-glory flower. 4. Why is Yellowstone National A It has many natural wonde B It has erupting volcanoe: C It has been open for 80 D Very few people knov

## Step 1<br />The problem is asking us to identify the reason why Yellowstone National Park is considered a national park. The options provided are:<br />A. It has many natural wonders<br />B. It has erupting volcanoes<br />C. It has been open for 80 years<br />D. Very few people know about it<br /><br />## Step 2<br />We need to analyze each option in relation to the definition of a national park. A national park is typically a large area of land or water that is protected by the government because of its natural beauty, historical significance, or endangered species.<br /><br />## Step 3<br />Option A, "It has many natural wonders," aligns with the definition of a national park. National parks are often established to preserve their natural beauty and unique features.<br /><br />## Step 4<br />Option B, "It has erupting volcanoes," is not a typical reason for a park to be designated as a national park. While some national parks may contain volcanic features, the presence of erupting volcanoes is not a defining characteristic of a national park.<br /><br />## Step 5<br />Option C, "It has been open for 80 years," is not a reason for a park to be designated as a national park. The length of time a park has been open is not a factor in its designation as a national park.<br /><br />## Step 6<br />Option D, "Very few people know about it," is also not a reason for a park to be designated as a national park. The number of people who know about a park is not a factor in its designation as a national park.