Volcanic eruptions are formed when so much PRESSURE from the magma inside the volcano builds up to it's boiling point.
An example would be like shaking soda as soon as the pressure is released there is foam. It's then same concept but with magma aka lava
Hope this helped
<span> Continental Polar air masses are also cold to cool and dry, but are not as cold as the Arctic air masses. Continental Polar air masses form over Canada and </span>Siberia<span>. These air masses bring cold air during the winter and cool, relatively clear, rather pleasant weather in the summer. So it would be northern Canada.</span>
The correct answer is - True.
Desert plants are widely spaced because of the lack of water in the deserts. They are highly adapted to manage to get every drop of water, be it through their roots or through their leafs or thorns. They have very big root systems, that are both very deep and very big in diameter, so it is practically impossible for them to be next to each other because their root systems are so big and also the lack of water and nutrients, if they are next to each other they will not be able to survive because while competing with each other none of the plants will be able to satisfy its needs.
Answer:
The first theory is: as the cloud collapsed to form a galaxy, it's spin is what determined what type of galaxy it became. Some theorists believe that spiral galaxies were formed from clouds that had a significant spin. ... The second theory is that elliptical galaxies were formed from collisions of spiral galaxies
