Scale: Your map stretches, perhaps, a half meter square in your hands, but how many square kilometers does it cover? The map’s scale tells you what a distance on the map represents in terms of kilometers or miles. It is usually depicted as a ratio of either inches or centimeters. 1...
The lava disperses out over a wide surface area -- sometimes hundreds of kilometers -- building up a shield-shaped dome. Near the summit, the edifice gets a little steeper, giving the volcano a slightly raised center. Many shield volcanoes erupt with great frequency (every few years or so...
A local coal mine grows by 11 acres per year. How many square meters per day is this? As a crude model for lightning, consider the ground to be one plate of a parallel-plate capacitor and the cloud to be the other plate. The altitude of the cl...
How big is the great pacific garbage patch? It's estimated at 1.6 million square kilometers which converts to 617,764 square miles. Where is the great pacific garbage patch? The Great Pacific Garbage Patch is located in the North Pacific Ocean, roughly between Hawaii and California. It's ...
The Yukon River is one of the most significant geographical features in North America, spanning over 3,000 kilometers from its source in British Columbia all the way to its mouth at the Bering Sea. To locate it on a map, you can start by looking for western Canada and Alaska. The river...
The best place to see the northern lights is any destination in the "auroral zone," the area within an approximately 1,550-mile (2,500 kilometers) radius of the North Pole, according to the Tromsø Geophysical Observatory in Norway. That's where the aurora most frequently occurs, though ...
Take for example, the vast country of Russia, 6.6 million square miles (17 million square kilometers). Why is it part of Europe rather than Asia? "The Ural Mountains are taken to separate Asia and Europe but only because Russians wanted their great city of Moscow to be European, so the...
So, no matter what, the Earth will soon see a summer with less than 1 million square kilometers of sea ice scattered in tiny bits across the Arctic. The big question is when the Arctic will "look like a blue ocean," said Mark Serreze, director of the National Snow and Ice Data ...
A map scale of 1:63,360 is common in Forest Service maps, and maps throughout Alaska. These are smaller-scale maps, with less intricate detail. Some National Geographic maps use a scale of 1:65,000, which allows a large area of land to be packed onto a single topo map. ...
Since 2000, the world lost over104 million hectaresof pristine and intact forest landscapes. In 2020 alone, over 10 thousand square kilometers of the Amazon were destroyed for thedevelopment of roads. Deforestationand fragmentation are caused by a range of human development activities. But they are...