Wilderness areas are parts of national parks, wildlife refuges, national forests, and the public domain. Today, there are 107.5 million acres of wilderness spanning 44 states and Puerto Rico, accounting for 4.82% of the United States. About half of that total is in the state of Alaska.
Small size. Earth is the largest of the Inner Planets, with a diameter of 12,756 km (7,926 miles). Mercury is the smallest with a diameter of 4,878 km (3,031 miles) Huge! Jupiter, the largest planet, has a diameter of 142,984 km (88,846 miles). Neptune is the smallest of the Outer Planets with a diameter of 49,532 km (30,779 miles) Have solid surfaces and thin/no atmospheres. In theory, it would be possible to stand on each of the Inner Planets, although you would only survive on Earth.
The smallest planet in regards to both mass and volume is Mercuryâthis tiny world is nearly 20 times less massive than Earth, and its diameter is about times 2 Â½ smaller. In fact, Mercury is closer in size to our Moon than to Earth.The largest planet in our solar system by far is Jupiter, which beats out all the other planets in both mass and volume. Jupiterâs mass is more than 300 times that of Earth, and its diameter is about 11 times larger than Earthâs diameter.he smallest planet in regards to both mass and volume is Mercuryâthis tiny world is nearly 20 times less massive than Earth, and its diameter is about times 2 Â½ smaller. In fact, Mercury is closer in size to our Moon than to Earth.