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.
The Volga is the longest river in Europe. It is also Europe's largest river in terms of discharge and drainage basin. The river flows through central Russia and into the Caspian Sea, and is widely regarded as the national river of Russia.
D. 4x^2 - 3 is the correct answer. This is because we just break the original expression down into two fractions and then simplify them
(8x^3 - 6x)/2x becomes these two fractions:
8x^3/2x - 6x/2x
These two simplify down to your answer, 4x^2 - 3
Answer:
c
Explanation:
a omnivore eats booth meat and plant and that is the only option that has booth so hope this helps have a good day XD
Answer:
A principal methodology governing geographic inquiry involves spatial analysis. B)
