Is Antarctic sea ice at record levels?
Earth ScienceAsked by: Thao Adams Sea ice around Antarctica has reached a record low in four decades of observations, a new analysis of satellite images shows. Is Antarctic sea ice increasing? From the start of satellite observations in , total Antarctic sea ice increased by about 1 percent per decade. Whether the increase was a sign
Where does all the earth from surface mining go?
Earth ScienceAsked by: Thao Adams How does surface mining affect the Earth? Surface mining (another name for “strip mining”) can severely erode the soil or reduce its fertility; pollute waters or drain underground water reserves; scar or altar the landscape; damage roads, homes, and other structures; and destroy wildlife. Where does surface mining happen? There are
What role does the hydrosphere play in tectonic plate convection?
Earth ScienceAsked by: Melissa Craven Large convection currents in the aesthenosphere transfer heat to the surface, where plumes of less dense magma break apart the plates at the spreading centers, creating divergent plate boundaries. What role does water play in plate tectonics? On the Earth, water plays a necessary role in shaping plate tectonic activity, as
Differentiate correlation of between depth and bouguer anomaly
Earth ScienceAsked by: Melissa Craven What is the Bouguer gravity anomaly? [ bōō-zhâr′ ] The difference between the expected value of gravity at a given location (taking into account factors such as latitude, longitude, altitude, and the rotation of the Earth) and its actual value. How do positive and negative Bouguer anomalies differ? The Bouguer anomaly
Waves on sandy beach separating differently-sized rocks?
Earth ScienceAsked by: Marshall Zellner Why does sediment size vary along a beach? The size of sand grains is related to the slope of the beach. For example, the steeper the beach, the larger the sand grain size tends to be. This is because larger particles can be cast higher up the beach by the waves
Can anyone explain this frost phenomenon?
Earth ScienceAsked by: Marshall Zellner What is the causes of frost? Frost usually forms when a surface cools through loss of infrared radiation to a temperature which is colder than the dewpoint of the air next to the surface, AND the temperature of that surface is below freezing (32 deg F, or 0 deg. C). The