Plate boundaries are the edges where two plates meet. Most geologic activities, including volcanoes, earthquakes, and mountain building, take place at plate boundaries.
A tectonic plate (also called a lithospheric plate) is a massive, irregularly shaped slab of solid rock, generally composed of both continental and oceanic lithosphere. Plate size can vary greatly, from a few hundred to thousands of kilometers across; the Pacific and Antarctic Plates are among the largest.
Without plate tectonics, our planet would be a very different place. The constant recycling of the Earth's crust provides us with a stable climate, mineral and oil deposits, and oceans with a life-sustaining balance of chemicals. It even gives evolution a kick every few hundred million years.
Learn more about tectonic plates here: brainly.com/question/1162125
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When to talk about the plate tectonic it sound the same as our continents as we see in the ancient days you were having two continents which is laurasia and Gondwanaland
Answer: TRUE
Explanation: Took the test
Answer:
About 50 percent of Canada is underlain by permafrost, mainly in the Arctic Archipelago, Yukon, Northwest Territories, and Nunavut.
Explanation:
-more irregular
-larger
-smaller
The correct answer is - smaller.
The size of the crystals of the igneous rocks is directly affected by the speed of the cooling of the magma.
If the magma cools off very quickly, than the size of the crystals of the igneous rocks will be very small, while if the magma cools off very slowly, than the size of the crystals of the igneous rocks will be bigger.
This happens because of the time of influence of other factors in the formation of the rock itself. The ones that are on the surface or close to it, cool off very quickly, so there's no time for any significant influences on the rock. The ones that are deeper into the ground, cool off much slower because it is hotter, and also in that period the temperature and the high pressure manage to heavily influence the rock, thus making it having bigger crystals.