Does long-term exposure to ocean water change the chemical structure of plastic into ocean plastic?
Earth ScienceAsked by: Luis Estrada What happens to plastic in the ocean over time? Once the plastic is in the ocean, it decomposes very slowly, breaking into tiny pieces known as microplastics, which can enter the marine food chain and become incredibly damaging to sea life. The main source of ocean plastic pollution is land-based—80% of
Why is diabase/dolerite erosion resistant?
Earth ScienceAsked by: Janelle Froemming What is unique about diabase? Diabase is an intrusive igneous rock with the same mineral composition as basalt. It cools under basaltic volcanoes, like those at mid-ocean ridges. Diabase cools moderately quickly when magma moves up into fractures and weak zones below a volcano. What is the importance of diabase rock?
How large were Mars’ ocean tides and to what extent could they keep the oceans mixing and tend to keep salinity uniform? Has this been modeled?
Earth ScienceAsked by: Janelle Froemming How did Mars go from having oceans? It is now thought that the canyons filled with water, and at the end of the Noachian Period the Martian ocean disappeared, and the surface froze for approximately 450 million years. How deep would Oceans be on Mars? about 330 to 4,920 feet Prior
Limitations on mineral precipitation from solution
Earth ScienceAsked by: Neil Edwards What happens when a mineral precipitates from solution? Precipitation is the reverse process, in which ions in solution come together to form solid minerals. Precipitation is dependent on the concentration of ions in solution and other factors such as temperature and pressure. The point at which a solvent cannot hold any
Why are there different vertical gradients of temperature in different layers of the atmosphere?
Earth ScienceAsked by: Neil Edwards Temperature rises with altitude in the stratosphere because this is where the ozone layer exists. The troposphere is primarily heated from below. In contrast, the stratosphere is primarily heated from within via absorption of ultraviolet sunlight by oxygen and ozone. Why do the different layers of the atmosphere have different temperature
What would happen if Earth suddenly stopped rotating and revolving at the same time?
Earth ScienceAsked by: Chris Pederson At the Equator, the earth’s rotational motion is at its fastest, about a thousand miles an hour. If that motion suddenly stopped, the momentum would send things flying eastward. Moving rocks and oceans would trigger earthquakes and tsunamis. The still-moving atmosphere would scour landscapes. What will happen if the Earth stops