on April 14, 2022
What is significant about black smokers for biology?
GeologyAlthough life is very sparse at these depths, black smokers are the centers of entire ecosystems. Sunlight is nonexistent, so many organisms, such as archaea and extremophiles, convert the heat, methane, and sulfur compounds provided by black smokers into energy through a process called chemosynthesis. What is significant about black smokers for mineral resources? A
on April 14, 2022
Is a deposit created by a former meltwater channel or tunnel in glacial ice that was filled with sand and gravel?
GeologySand and gravel deposited by glacial meltwater streams areknown as outwash till or stratified till. In the north-central United States, much of the land north of the Ohio andMissouri Rivers was covered by one or more of the Pleistocene ice sheets. Which feature is formed by a former meltwater channel or tunnel beneath the glacial
on April 14, 2022
What is continental volcanic arc?
GeologyA continental volcanic arc forms along the margin of a continent where oceanic crust subducts beneath continental crust. The Cascade Volcanoes are an example. In both cases, the volcanic arc is an active landform. The term complex is used in geology to identify a discrete package of deformed rocks. How is a continental volcanic arc
on April 14, 2022
How is Richter scale measured?
GeologyThe Richter scale measures the magnitude of an earthquake (how powerful it is). It is measured using a machine called a seismometer which produces a seismograph. A Richter scale is normally numbered 1-10, though there is no upper limit. How Richter scale is calculated? How is the Richter Scale calculated. The Richter magnitude involves measuring
on April 14, 2022
What areas are most affected by volcanoes?
GeologyAfter Indonesia, the most at-risk countries include the Philippines, Japan, Mexico, Ethiopia, Guatemala, Ecuador, Italy, El Salvador and Kenya. Lava and ash deserve the awe they inspire, notes Orskin: they can be incredibly destructive. About 278,000 people have perished due to volcanoes since 1600. What areas have the highest risk for volcanic hazards? The eighteen
on April 14, 2022
In which provinces are most of Virginia’s fossils found?
GeologyFossils can be found in many geologic provinces in Virginia, including: the Coastal Plain, the Mesozoic Basins, the Valley and Ridge, and the Appalachian Plateaus. Where can I find fossils in Virginia? Favorite places to hunt for fossils are Chippokes Plantation State Park on the James River, Westmoreland State Park on the Potomac River, and
on April 14, 2022
What type of landform is the Appalachian Mountains?
GeologyThe Appalachian Plateaus form the northwestern-most province of the Appalachian Mountains, stretching from New York southwest to Alabama. They are composed of sedimentary rocks including sandstones, conglomerates, and shales deposited during the late Paleozoic. What landform is Appalachian? The Appalachian Mountains is a system of landmasses comprised of mountains, ridges and valleys, and plateaus. What
on April 14, 2022
How do plants dissolve rock?
GeologyWhen plants cause mechanical weathering, their roots grow into rocks and crack them.It can also happen in streets or sidewalks. When plants cause chemical weathering, there roots release acid or other chemicals, onto rocks, which then forms cracks, and breaks apart. How are rocks dissolved? When water (e.g. rainwater) mixes with carbon dioxide gas in
on April 14, 2022
Can you see lava on Mount Etna?
GeologyYes, you can, if you are so lucky to visit Mount Etna during one of the frequent eruptions. When Mt. Etna finishes producing explosions and the lava starts to come out, people accompanied by a certified guide are allowed to get close to the lava. How high are Mount Etna lava fountains? The Voragine crater
on April 14, 2022
What is the different branches of earth science?
GeologyThe four basic areas of Earth Science study are: geology, meteorology, oceanography and astronomy. What are the 5 major branches of Earth science? Earth science is made of many branches of knowledge concerning all aspects of the Earth system. The main branches are geology, meteorology, climatology, oceanography, and environmental science. What are the three major