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.
Monumental Axis is the central avenue in Brasilia's city design
Explanation:
The first section of the monumental avenue is known to be the "Ministries Esplanade" because it is enveloped by ministers building. Many important government buildings and monuments are established on the monumental axis.
Cathedral of Brasilia is present there in the monumental axis. It was constructed after 1950 as a plan to construct a modern city. It serves ti be the major transportation point. monumental axis have twelve lanes which marks to be the world' busy dual carriage way.
When the hurricane touch the ground
Answer: C
A. Earth has no more natural resources left to be discovered.
B. Natural resources are spread around the globe through the Earth’s core.
C. Geological processes are responsible for the current distribution of Earth’s resources.
D. Earth’s most important materials are not considered natural resources.
