Question
Mid-ocean ridges are steeper and less broad than rises because:
Group of answer choices
A) the rocks of the mid-ocean ridges are composed of more dense mineral than the rises.
B) the rocks of the mid-ocean ridges are composed of less dense mineral than the rises.
C) The seafloor spreading rate of ridges are faster than rises causing the oceanic crust to subside closer to the ridge axis.
D) The seafloor spreading rate of ridges are slower than rises causing the oceanic crust to subside closer to the ridge axis.
E) Every ridge is composed of continental crust.
Answer:
The correct answer is D.
Explanation:
In volcanic regions, as the molten magma flows out onto the seafloor creating new beds, the faster it flows, the less steep the mid-ocean ridge is. If however, it is slow-flowing, then oceanic lithosphere formed cool closer to the ridge axis thus making it very steep.
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Os itens usados para o comércio nas colônias do sul das Colônias incluíam tabaco, algodão, arroz, índigo (corante), madeira, peles, produtos agrícolas, muitos dos quais foram produzidos nas plantações de escravos.
Answer:
The landform that will form is a mid-ocean ridge.
Explanation:
When tectonic plates move away from each other they form a divergent plate boundary. At this type of boundary, as the plates move away, a gap starts to open up gradually. This gap becomes wider and wider over time and the crust is made much less thick, which in turn presents a good opportunity for the magma to come out on the surface.
Because the crust is weaker and thinner, the magma manages to rise through it and rich the surface relatively easily. As it does, the magma reaching the surface, or rather the bottom of the ocean, it solidifies in the water and as more and more magma comes out it piles up. By piling up and constantly creating new rock an underwater mountain chain starts to form and this type of mountain chain is known as a mid-ocean ridge.
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There are only three groups and these groups that conquered North Africa at one time or the other are the Romans, Muslim Arabs, and the Phoenicians. These groups have developed colonies in North Africa. One example is the Phoenicians who built colonies to the Atlantic from the Tripoli. Also, during the conquest of the Muslim Arabs, this started the spread of Islam all over the country.
