What is the average color of soil?
General Knowledge & EducationDigging Deep: What Really is the Average Color of Soil? Ever stopped to really look at soil? It’s not just “dirt,” you know. It’s this amazing, varied canvas of colors – from the chocolatey browns of rich farmland to the rusty reds you see down south. So, if you tossed all the world’s soil into
What is the basis for the Geologic Time Scale
Regional SpecificsCracking Earth’s Deep History: How We Built the Geologic Time Scale Ever wonder how scientists figured out the age of the Earth, and how all those dinosaurs and ancient creatures fit into the picture? That’s where the Geologic Time Scale (GTS) comes in. It’s basically a giant calendar for our planet, stretching back a whopping
Plate Tectonics: Is it possible to have an ocean-continent divergent boundary
Earth ScienceAsked by: Robert Folsom Unlike convergent boundariesconvergent boundariesA convergent plate boundary is a location where two tectonic plates are moving toward each other, often causing one plate to slide below the other (in a process known as subduction). The collision of tectonic plates can result in earthquakes, volcanoes, the formation of mountains, and other geological
Why is Earth’s outer-core liquid?
Earth ScienceAsked by: Robert Folsom Although having a composition similar to Earth’s solid inner core, the outer core remains liquid as there is not enough pressure to keep it in a solid state. Is the Earth’s outer core liquid? The outer core is the third layer of the Earth. It is the only liquid layer, and
Can humanity help reinforce the ozone layer?
Earth ScienceAsked by: Erin Thomas Can humans repair the ozone layer? On the mend Around 99 per cent of ozone-depleting substances have been phased out and the protective layer above Earth is being replenished. The Antarctic ozone hole is expected to close by the 2060s, while other regions will return to pre-1980s values even earlier. How
How much of a mountain is below the surface?
Earth ScienceAsked by: Erin Thomas How deep is a mountain? How deep is the root for a mountain range with an average elevation of 15,000 feet (about 3 miles)? The most important point is that mountains have buoyant roots that extend downward into the mantle beneath a mountain range, and that the roots are, in general,