When magma<span> cools, </span>crystals<span> form because the solution is super-saturated with respect to some </span>minerals<span>. If the </span>magma<span> cools quickly, the </span>crystals<span> do not have much time to form, so they are very small. If the </span>magma<span> cools slowly, then the </span>crystals<span> have enough time to grow and become large.</span>
Answer:
Ukraine and Germany
Explanation:
Spiders may seem like a more specific Halloween ornament, but eight-legged creatures actually play an important role in other parties. We have discovered the tradition of "Christmas spiders."
It is based on a European folk tale that has been attributed to several countries, often Ukraine and Germany. In a version of the Christmas spider story, a widowed mother and her children were too poor to decorate their Christmas tree, and friendly spiders wove elaborate nets on a fir tree. When the family woke up on Christmas morning, they opened the curtains and sunlight illuminated the cobwebs, turning them into silver and gold (sometimes it is said to be the origin of the garlands). The family had good fortune thereafter. Other versions affirm that it was Santa Claus or Jesus himself who transformed the networks so that they did not bother the mother.
It is likely that the legend is related to the idea that spiders give good luck. Whatever the real reason, according to various sources, Ukrainians decorate their Christmas trees with spider-shaped ornaments (often made of precious stones) to this day
Water Erosion
Wind Erosion
Glacier Erosion
Sea Erosion
Soil Erosion
Along the Juan de Fuca Ridge, volcanoes produce oceanic crust. The Juan de Fuca Plate cools, grows denser, and finally sinks beneath the less dense North American Plate at the Cascadia Trench as it wanders eastward.
<h3>Is the Juan de Fuca Plate dying?</h3>
Because the decaying Juan de Fuca plate is not sinking silently, scientists have a unique opportunity to investigate such impacts. They are intently observing the system's every tremble and burp. (We learned that a strong earthquake broke a tectonic plate in half in this way.)
<h3>How Fast Is Juan de Fuca moving?</h3>
The Farallon Plate, a much bigger oceanic plate that originally existed alongside the smaller Juan De Fuca Plate, is moving east-northeast at a rate of 4 cm (1.6 inches) each year.
<h3>What is happening between the Gorda Plate and the Pacific Plate?</h3>
At a rate of 5 cm per year, the Pacific Plate is diverging from the Gorda Plate as it moves in a northwesterly direction. At a much slower rate of 2.5 to 3 cm per year, the Juan de Fuca Plate (which includes the Gorda Plate) is subducting beneath the North America Plate.
Learn more about Juan de Fuca visit:
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