Answers
Question Options:
A. A and B
B. B and C
C. C and D
D. A and C
E. B and D
Answer: C and D. C is near Hawaii, D is along a mid-ocean ridge
Hotspot in geology is the surface manifestation of a plume that rises from deep in the celestial body's mantle.
Divergent margins also known as rift zones, shield volcanoes tend to form as two oceanic plates pull slowly apart and magma effuses upward through the gap.
The sites based on history that has volcanism related to a hot spot or divergent margin are Hawaii and the mid-ocean ridge. Hawaiian volcanoes within the Pacific Plate are caused by anomalous volcanism.
The correct answer is option (c), option (d) because Volcanism related to hot spots is typically found in locations such as Hawaii. Hot spots are areas on the Earth's surface that have a high amount of heat flowing towards the surface from the mantle.
This often leads to volcanic activity that forms shield volcanoes, which is the case with the Hawaiian Islands. As the Pacific Plate moves over the stationary hot spot, a chain of volcanic islands is formed.
On the other hand, volcanism associated with divergent margins occurs at mid-ocean ridges. At these ridges, tectonic plates are moving away from each other, and new oceanic crust is formed through the eruption of basaltic lava. This process is part of seafloor spreading, which is a key component of plate tectonics.
In contrast, site A, located on an island arc, is associated with subduction zones where one tectonic plate is pushed beneath another, leading to the formation of volcanic arcs.
Site B, in the Andes, is also related to subduction, where the Nazca Plate is subducting beneath the South American Plate, resulting in the Andean volcanic belt.
Related Questions
Tsunami wavelengths can be as great as ____________.
A. 840 m
B. 8400 m
C. 84 km
D. 840 km
E. 8400 km
Answers
Answer
Tsunami wavelengths can be as great as 840 km
Answer:
D option 840km
Explanation:w
A tsunami is a series of great sea waves caused by underwater earthquake, landslide and volcanic eruption. Tsunami waves can be as long as 60 miles or 100 kilometers and can be as far as one hour apart.
At what time doe the Sun set?
Move the time back and forth one whole day, in one-hour increments, to determine the following: (You can turn off the atmosphere to help read the Sun's data in the upper left of the screen.)
What is the lowest Altitude of the Sun during this 24-hour period?
Answers
Answer:
Right around 7-9 PM.
Explanation:
It actually all depends on the time zone, and what season you are in. If it is summer, the sun should be setting right around 7-9 PM. If it is winter, then I belive the sun sets a little earlier than that.
Pyroclastic material is ejected from a volcano during an explosive eruption. These fragments are defined by their size, which ranges from less than 2 mm to greater than 64 mm.
Ashis less than 2 mm in diameter, with an appearance of dust or sand.
Lapilli, or cinders, range from 2 mm to 64 mm in diameter. These pyroclasts are commonly pea to walnut sized.Blocksand bombsrepresent the largest fragments, which are greater than 64 mm.
Blocksare erupted as hardened lava with a mostly angular shape, while bombsaresemi-molten and develop a streamlined-shape while flying through the air.HelpReset
Answers
Answer:
As this less than 2 mm in diameter, with an appearance of dust or sand. These pyroclasts are commonly pea to walnut sized.Lapilli, or cinders, range from 2 mm to 64 mm in diameter. Blocks And bombs represent the largest fragments, which are greater than 64 mm. Blocks are erupted as hardened lava with a mostly angular shape, while bombs semi-molten and develop a streamlined-shape while flying through the air.Explanation:
A pyroclastic material is a particle ranges for the 2 to 64 mm in diameters and they can range of the volcanic bombs to the ash and the lavas.Like Lapilli or the cinders, they have a diameter of about 64 mm. They extend to miles form the volcano when they blast as blocks and can devastate lands, life, and property within there paths.Pyroclastic material ejected from volcanoes during explosive eruptions is categorized by size. Ash is less than 2 mm, lapilli are 2-64 mm, and blocks and bombs are greater than 64 mm, with blocks being angular and bombs smoother due to being partially molten.
During an explosive volcanic eruption, various sizes of pyroclastic material are ejected, each with different names based on their size. The smallest particles, known as volcanic ash, are less than 2 mm in diameter and can resemble dust or sand. These fine particles can travel long distances and carry potential health hazards, like causing respiratory issues.
Slightly larger fragments are called lapilli or cinders, which have diameters ranging from 2 mm to 64 mm, roughly the size of peas to walnuts. These pyroclasts tend to fall closer to the volcano. The largest pyroclastic materials are blocks and bombs which are greater than 64 mm. Blocks are already hardened when ejected, taking on a mostly angular shape, whereas bombs are semi-molten during ejection and can develop a streamlined shape as they fly through the air.
what is the area of the shaded sector
Answers
Answer:
Area of the sector is 558.22ft².
Explanation:
A= N/360(πr²)
where;
N=160°
π=3.14
r=20
A= 160/360(3.14(20)²)
A= 160/360(3.14(400))
A= 160/360(1256)
A=558.22ft.
Recall that area is measured in square units. And the unit of the radius is ft. Therefore our final answer becomes 558.22ft².
Also note that a sector is the part of a circle enclosed by two radii of a circle and their intercepted arc. It iseasily noted to be the pie-shaped part of a circle.
Answer:558.22f^2
Explanation:
did a test
Which of these statements is true about plate tectonics? Continental drift on the Earth is caused by circulating convection currents in the deep interior. Continental drift on Earth is caused by the slow precession of Earth's spin axis. Tidal forces from the Moon and Sun causes the slow drift of continental land masses. Two crustal plate boundaries can easily slide past each other because of the presence of seawater. The Mid‑Atlantic Ridge is an area of continuous seafloor erosion which creates powerful earthquakes along a subterranean mountain chain.
Answers
Answer:
continental drift on the Earth is caused by circulating convection currents in the deep interior
Explanation:
The Tectonic plates make up the earth's crust and the movement of these tectonic plates that make up the earth's crust is due to the movement of the Magma of the earths crust that flows/moves in the form of convectional currents.
The earths crust acts as the heat insulator which when heated up due to internal pressures releases hot Magma flowing in the form of convectional currents apart from the convectional currents causing the plate tectonics to move other factors like ridge push and slab pull can also cause the plates to move as well.
The true statement about plate tectonics is that continental drift is caused by circulating convection currents in the Earth's deep interior, which move the tectonic plates.
Explanation:The statement that is true about plate tectonics is: Continental drift on the Earth is caused by circulating convection currents in the deep interior. In the Earth's mantle, heat from the core causes convection currents. These currents cause molten rock to flow, which moves the tectonic plates - large sections of the Earth's crust - on the Earth's surface. This process is behind continental drift.
Continental drift has no direct link to the precession of the Earth's spin axis. Tidal forces from the Moon and Sun affect Earth's water bodies, but not the drift of continental land masses. Seawater does not enable plate boundaries to slide past each other more easily and the Mid-Atlantic Ridge, a result of divergent plate boundaries, is a site of seafloor spreading, rather than continuous erosion and source of earthquakes.
Learn more about Plate Tectonics here:https://brainly.com/question/31787130
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Which of the following statements are true?
Check all that apply:
O The north poles of two bar magnets will attract each other.
O Earth's geographic south pole is also a magnetic south pole.
O Earth's geographic north pole is actually a magnetic south pole.
O The north pole of a bar magnet will attract the south pole of another bar magnet.
O The south poles of two bar magnets will repel each other.
O Scientists have evidence that single isolated magnetic poles, called magnetic monopoles, exist.
Answers
Answer:
Options (3), (4) and (5)
Explanation:
The geographic north and south poles refers to the two geographical location/points, where the earth's axis spins. And the magnetic north and south poles refers to the direction towards which a compass needle points.
The geographic north pole and the magnetic south pole of earth is the same, and two bar magnets where one having the north pole and the other having the south pole can attract each other. Similar poles of two bar magnets cannot attract one another, whereas they repel.
Thus, the correct answers are options (3), (4) and (5).
Answer:
Earth's geographic north pole is actually a magnetic south pole.The south poles of two bar magnets will repel each other.The north pole of a bar magnet will attract the south pole of another bar magnet.Explanation:
The earth's geographical north pole is also called as the north pole or the terrestrial geographical north pole and is defined as the point of the northern hemisphere and is the magnetic south pole of the earth. The earth magnetic poles have equal are properties and thus are close relation and opposite to each and every property.
A large, major hurricane is predicted to come ashore with its eye near the Louisiana/Mississippi border. You are asked to recommend if more resources should be sent to Louisiana or to Mississippi in preparation. What do you recommend
Answers
Answer: As a consultant for such a large disaster, I would recommend that instead of focusing on resources to Louisiana or Mississippi, the authorities should focus more on the EVACUATION OF PEOPLE from those locations. In my opinion, this is the best option because it is better to be safe than sorry. Since it was predicted that the hurricane that is approaching is large and major, the extent of the damage will definitely be large and major. The best thing will be for the hurricane to come and meet no one, than come and meet people.
Explanation:
An old, failed rift under the central United States is believed to represent a zone of weakness in the lithosphere and a possible earthquake hazard zone. True False
Answers
Answer:
True
Explanation:
A failed rift occurs when there is a failed continental rifting whose activities continued until the point of breakup. An example is in the Eastern part of Nigeria which is dominated by the Benue trough which trends Northeast is considered as a failed rift.
Assume that our Moon is hit by 25 million tiny meteorites every day. On average, it takes about 20 such impacts to obliterate a footprint left by an Apollo astronaut on the surface of the Moon. About how long would you estimate that it would take to erase evidence of a single footprint
Answers
Answer:
1.1 year for any small rock.
Explanation:
As the moon is frequently hit by the asteroid that directly impacts the surface and creates creators. As per the question if it takes about 20 of such impacts to remove the footprints lt by the apollo moon lander. Then it should take about one year as the moon has no atmosphere and is exposed to the solar winds.With the addition of water, the minerals in granite rocks chemically weather into other minerals, known as products. Test your knowledge of the by-product of each mineral as a result of chemical weathering by labeling the minerals below with their respective products.
1. Feldspar
Clay, no chemical change, or limonite?
2. Quartz
Clay, no chemical change, or limonite?
3.Olivine
Clay, no chemical change, or limonite?
Answers
Answer:
Feldspar-clay
Quartz- No chemical change
Olivine- Limonite
Explanation:
When chemically weathered, some of the original minerals of granite change into different minerals.
Feldspar, for example, tends to hydrate and transform into a clay mineral.
Iron-rich minerals, like olivine, turn into limonite by chemical weathering. Quartz is considerably resistant to chemical weathering, so it´s the least susceptible to the chemical change.