D. high and low levels of silica in the different type of lava.
Explanation:
The volcanoes have different types of explosions. Some tend to be highly explosive, some less explosive, some don't have explosions at all, while some have combinations of different eruptions. The reason for this diversity in the eruption types is mostly the composition of the magma, or rather how high is the silica content in it.
Basically, the higher the silica level in the magma the higher the explosiveness, and the lower the silica level the lower the chances of explosiveness. This is the case because the higher amount of silica makes the magma thicker, so the gasses are trapped and they explode, while when the lower silica content makes the magma less thick, so the gasses are not trapped and explosions are lacking.
Answer:
an irregular galaxy is a galaxy that does not have a distinct or regular shape.
Explanation:
Answer:
Explanation:
physical - soil fertility, soil drainage, slope angle, aspect, scenery, mineral potential etc.
The utilisation of land is determined by the continuous interplay of the physical factors, such as relief, soil, climatic conditions, mineral resources, etc., and the human factors like density of population and the technological and social requirements of people.
If Claudia got lost several times on the way to her first day at her new school and had to ask for directions, then this most likely occurred because Claudia did not yet have a mental map established for her new school.
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It changes chemical makeup of the rock through oxydation and hydrolysis
