The term for the sudden decrease of land caused by flowing water or waves during storms is called a storm surge. It involves a rapid rise in sea level due to both low pressure at the hurricane's center and wind-driven water piling up along the coast, leading to coastal flooding and associated land damage.
The term that describes the sudden decrease of land caused by flowing water or waves, often caused by hurricanes and other storms, is known as a storm surge. A storm surge is characterized as a temporary condition where a significant rise in sea level along the coast occurs, leading to the inundation of normally dry land areas. This event is typically the result of two processes: a pressure surge created by the hurricane's low-pressure eye, which pulls water upwards, and a wind-driven surge that pushes water onto the shore as the hurricane approaches landfall. These surges can lead to severe coastal flooding and erosion and can be exacerbated by factors like high tide, the geography of the coast, and the hurricane's speed and intensity.
In addition to directly causing flooding, storm surges can also lead to overwash, which is caused by waves that rush over a coastal barrier, whether natural or artificial, during a storm. Furthermore, storm surges are linked to landslides when the force of water saturates the soil on slopes, leading to their collapse. Overall, storm surges represent the most destructive aspect of hurricanes and can result in significant damage to coastal areas and structures, as well as loss of life.
Distinguish between regional and contact metamorphism. a. Contact metamorphism occurs when chemically active fluids flow through a large region of preexisting rock; regional metamorphism occurs when large quantities of rock are subjected to high heat and pressure during mountain building. b. Regional metamorphism occurs when magma intrudes existing rock and heats it enough to cause metamorphic changes; contact metamorphism occurs when large quantities of rock are subjected to high heat and pressure during mountain building. c. Contact metamorphism occurs when magma intrudes existing rock and heats it enough to cause metamorphic changes; regional metamorphism occurs when large quantities of rock are subjected to high heat and pressure during mountain building. d. Regional metamorphism and contact metamorphism both occur when quantities of rock are subjected to high heat and pressure during mountain building, but regional metamorphism affects over a greater area. e. Regional metamorphism occurs when chemically active fluids flow through a large region of preexisting rock; contact metamorphism occurs when magma intrudes existing rock and heats it enough to cause metamorphic changes.
Answer:
Option c
Explanation:
Regional metamorphisim occurs as a result of tectonic activity and is characterized with low temp and high pressure conditions over a large area while contact metamorphism occurs intrudes existing rocks.
Contact metamorphism is a localized process that involves rock alteration due to intrusion of magma, impacting a relatively small area. On the contrary, regional metamorphism is a large-scale process that transforms rock over a wide area due to tectonic activity and is associated with phenomena like mountain building.
Explanation:The difference between regional and contact metamorphism is due to the conditions under which they occur and the extent of their influence. Contact metamorphism occurs when magma intrudes into the surrounding solid rock body, causing a high gradation of heat and altering the existing rock. This process typically affects a relatively small area surrounding the intrusion.
On the other hand, regional metamorphism involves the transformation of large volumes of rock over a wide geographic area, primarily due to the intense heat and pressure associated with tectonic processes such as mountain building. Therefore, the main difference lies in the scale and conditions of the metamorphism process.
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Earthquakes in California are Choose one: A. typically due to stick-slip behavior along the San Andreas fault. B. always less than magnitude 6.5. C. the result of reverse faulting along the San Andreas fault. D. the result of rifting along the San Andreas fault.
Answer:D
Explanation:
A plausible magnitude 7.8 earthquake on the San Andreas fault could bring wide spread severe, violent and extreme shaking.
With increasing distance from an oceanic ridge, the rocks become older. the rocks become younger. the rocks' ages alternate between younger and older. All of the choices; different patterns occur at different ridges.A. TrueB. False
Answer:
Option (1)
False
Explanation:
The mid-oceanic ridge is one of the main features in the divergent plate boundary. Seafloor spreading takes place along this ridge, where the lithosphere becomes thin because of the uprising magma. The magma erupts at the surface forming a ridge which is commonly known as the mid-oceanic ridge.
As the magma melts at this ridge due to the decompression process, it solidifies and forms young basaltic igneous rocks. These are geologically the youngest rocks. With the increasing distance right from the mid-oceanic ridge, the age of the rocks increases.
Thus, the correct answer is option (1).
At this mid-oceanic ridge, when the magma erupts at the seafloor, it is comprised of magnetic minerals, which shows a specific pattern in the orientation of the earth's magnetic polarity. This forms alternate stripes, that starts from the mid-oceanic ridge and eventually expand outward. This pattern of earth's magnetic polarity is found in all the mid-oceanic ridges on earth.
Hence the given statement is false.
Rocks do get older the further you get from an oceanic ridge, due to seafloor spreading and the process of new rock formation at these rift zones, where tectonic activity is most prevalent. This creates a pattern in which the youngest rocks are found closest to the ridge, and the age increases with distance.
Explanation:The statement in the question, 'With increasing distance from an oceanic ridge, the rocks become older.' is true. This pattern is a consequence of seafloor spreading at mid-ocean ridges, which are active rift zones. As tectonic plates pull apart, magma rises to the seafloor, cools, and solidifies to form new rock. Over time, this process pushes older rock further away from the ridge as new rock forms. Plate tectonics and volcanic forces form new terrains and contribute to this cycle, leading to an observable pattern where the age of rocks increases the further you move from the ridge.
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Calculate how many meters of distance are equivalent to 11,700 years, using the metaphor-conversion-factor of 1,000,000 years per kilometer. In other words, if 1,000 meters = 1,000,000 years, how many meters is 11,700 years?
Answer:
11.7 meters
Explanation:
If
[tex]1000m=1,000,000years,[/tex]
let the unknown meters = [tex]x[/tex]
[tex]x[/tex]meters [tex]=11,700 years[/tex]
∴
[tex]1000 * 11,700 = 1,000,000x[/tex]
[tex]11,700,000[/tex] = [tex]1,000,000x[/tex]
Divide both sides by 1,000,000
[tex]\frac{11,700,00}{1,000,000} = \frac{1,000,000x}{1,000,000}[/tex]
[tex]x =[/tex] 11.7 meters
To convert 11,700 years to meters, we need to first convert it to kilometers using the given conversion factor. Then, we can convert kilometers to meters using the conversion factor provided.
Explanation:To calculate how many meters are equivalent to 11,700 years using the given metaphor-conversion-factor, we need to use the conversion factor of 1,000 meters per 1 kilometer.
First, we will convert the given 11,700 years into kilometers by dividing it by the conversion factor of 1,000,000 years per kilometer. This gives us 0.0117 kilometers.
Next, to convert kilometers to meters, we'll multiply 0.0117 kilometers by the conversion factor of 1,000 meters per 1 kilometer. This gives us 11.7 meters.
Why was Wegener’s idea of ""continental displacement"" not widely accepted at first? What did it lack?
Answer:
According to Wegener, all the continents were all one lumped together into one large land mass before they started drifting apart over time over the oceanic bed.
At first, the idea was highly criticized because he never explained "how" they drifted apart, as in what caused the motion, what was behind the drifting. I hope you understand.