Posted on September 27, 2022
Was Earth completely covered in Oceans prior to the onset of plate tectonics?
Earth ScienceAsked by: Brandon Bilima New evidence suggests the planet was covered by a vast ocean and had no continents at all. Continents appeared later, as plate tectonics thrust enormous, rocky land masses upward to breach the sea surfaces, scientists recently reported. Was the Earth initially covered in water? Earth may have been a water world
Posted on September 27, 2022
Geology: What’s make a group of bedrock a formation?
Earth ScienceAsked by: Chris Norton What is a bedrock formation? bedrock, a deposit of solid rock that is typically buried beneath soil and other broken or unconsolidated material (regolith). Bedrock is made up of igneous, sedimentary, or metamorphic rock, and it often serves as the parent material (the source of rock and mineral fragments) for regolith
Posted on September 27, 2022
“Five of the Solomon Islands disappeared” due to sea level rise, how is this possible so quickly?
Earth ScienceAsked by: Chris Norton What happens to islands when sea levels rise? As sea level rises, island nations are at increased risk of losing coastal arable land to degradation as well as salination. Once the limited available soil on these islands becomes salinated, it becomes very difficult to produce subsistence crops such as breadfruit. How
Posted on September 27, 2022
Why does the so called “tornado alley” exist?
Earth ScienceAsked by: Dallas Dooley Tornado Alley is a loosely defined area of the central United States where tornadoes are most frequent. The term was first used in 1952 as the title of a research project to study severe weather in areas of Texas, Louisiana, Oklahoma, Kansas, South Dakota, Iowa and Nebraska. Who created the term
Posted on September 27, 2022
What is the tectonic explanation for parallel ridges in the Arctic Ocean?
Earth ScienceAsked by: Dallas Dooley Is the Arctic Ocean a divergent ocean? The Arctic Ocean is home to the volcanically active Gakkel ridge, which is an example of a divergent plate boundary. Unlike volcanic activity on land (tall, conical, non-spreading), undersea volcanoes are linear, usually long and continuously oozing magma. What formed the Lomonosov Ridge? The
Posted on September 27, 2022
Can clouds increase the level of UV-A radiations received on the earth surface? If so, by how much, and in which condition(s)?
Earth ScienceAsked by: Samuel Lotz Do clouds increase UV rays? A term coined as the ‘broken cloud effect’ reveals that certain clouds can actually create higher UV levels than a perfectly cloudless day. When compared with completely clear skies, studies have shown that partially cloudy skies have raised the UV-B rays by 25% and increased DNA