on April 15, 2022
What is the difference between constructive and destructive plate boundary?
Regional SpecificsThey are called constructive plates because when they move apart, magma rises up in the gap- this forms volcanoes and eventually new crust. One example is the Mid-Atlantic Ridge, where the gap can be found in Thingvellir, Iceland. Destructive plate boundaries are when oceanic and continental plates move together. What is the difference between a
on April 15, 2022
What types of organisms lived during the Archean eon?
Regional SpecificsLife in the Archean was limited to simple single-celled organisms (lacking nuclei), called prokaryotes. In addition to the domain Bacteria, microfossils of the domain Archaea have also been identified. What type of organism was most common during the Archean eon? These organisms were prokaryotes, a group of unicellular organisms with rudimentary internal organization that began
on April 15, 2022
What type of boundary exists between the Philippine plate and the Pacific plate?
Regional Specificsconvergentconvergent. The Pacific plate is subducting beneath the Philippine Sea plate to the east while the west/northwestern part of the Philippine Sea plate is subducting beneath the continental Eurasian plate. Which plate boundary is formed between the Philippine plate and the Pacific Plate? It is separated from the Philippine Sea Plate to the west by
on April 15, 2022
Which isotope is used to determine the age of Earth?
Regional SpecificsThe best-known radiometric dating method involves the isotope carbon-14, with a half life of 5,730 years. How do we determine the age of the Earth? So, just how old is Earth? By dating the rocks in Earth’s ever-changing crust, as well as the rocks in Earth’s neighbors, such as the moon and visiting meteorites, scientists
on April 15, 2022
Which US states have active volcanoes?
Regional SpecificsThere are 12 states with active volcanoes. Here’s the list. Alaska: 141. California: 18. Oregon: 17. Washington: 7. Hawaii: 5. Utah: 4. Idaho: 4. New Mexico: 3. Which state in the United States has an active volcano? Alaska is home to 141 active volcanoes, the most of any US state. Other states include California, Oregon,
on April 15, 2022
Is there earthquakes in Italy?
Regional SpecificsHow common are earthquakes in Italy? In the past 1,000 years, there have been about 260 earthquakes of magnitude Mw equal to or greater than 5.5 — on average once every four years. Besides natural plate movements, fracking is also a possible cause of the latest seismic phenomenon in regions like Emilia Romagna. Does Italy