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
on September 27, 2022
Persistence time of ozone
Earth scienceAsked by: Ruth Hamkens O3 has the shortest lifetime (τ = ~1 hour in urban atmosphere, McClurkin et al., 2013) among the three pollutants. The level of ozone is affected by its precursors (NO2 and VOCs), which both have large variability(Sharma et al., 2016). … How long can ozone molecules last? Ozone decomposition Temp (°C)
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
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
on September 27, 2022
What is this geographical feature? (as seen in maps)
Earth scienceAsked by: Samuel Lotz What is a geographical feature on a map? Geographic features, or geographical formations, are components of a planet that can be referred to as locations, sites, areas, or regions (and therefore may show up on maps). There are natural geographic features, abstract geographic features, and on Earth there are also artificial
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
on September 27, 2022
Chicxulub Asteroid Remains?
Earth scienceAsked by: Jami Coulson Does the Chicxulub asteroid still exist? UPDATE: Today, scientists published their first results from a drilling expedition into Chicxulub crater, the buried remnants of an asteroid impact off the Yucatán Peninsula in Mexico that killed off the dinosaurs 66 million years ago. Are there still pieces of the asteroid that killed
on September 27, 2022
The geology of local landscapes and small scale features
Earth scienceAsked by: Jami Coulson What is a geological landscape? (land′-scape) The distinct association of landforms, esp. as modified by geologic forces, that can be seen in a single view, e.g. glacial landscape. By this definition, landscape is a visual scene containing geological landforms with no connotation of human culture. How does geology affect the landscape?
on September 27, 2022
Endogenous Theories For the Origin of Earth’s Water (Dry/Wet Accretion?)
Earth scienceAsked by: Alexandergraham Davis What is the origin of water on Earth? At present, asteroids up to a few hundred kilometers across seem the most likely sources of most of Earth’s water, specifically the types of asteroid that dominate the outer asteroid belt between Mars and Jupiter. What does it mean for the origins of
on September 27, 2022
Could this cloud be artificially formed?
Earth scienceAsked by: Alexandergraham Davis Can you make an artificial cloud? Quote from video: Well it becomes a cloud as that water vapor rises in the atmosphere. It cools. And when it gets high enough it creates condensation it sticks to tiny particles in the atmosphere. How artificial clouds are formed? An artificial cloud in the