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:
India and Pakistan
Explanation:
Shatter belt is a concept in geopolitics according to which on the political map are recognized and analyzed strategically positioned and oriented regions that are deeply internally divided and encompassed in the competition between the great powers in the geostrategic areas and spheres.
Wegener was able to use evidence from climate change so as to be able to give support his theory in the sense that he used explained that an island in the Arctic Ocean do contains fossils of tropical plants.
Base on the theory that continents were once connected help in explaining the glacial striations however, if the continents always occupied their present-day positions, it will be hard to explain pattern of glacial striations since the theory of continental drift theory is based on the rotation of the Earth.
<h3>What is Wegener continental drift theory?</h3>
It should be noted that Wegener suggested that rotation of the Earth that come as a result of how the continents shift towards and apart from each other.
Learn more on continental drift theory at:
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The correct answer would be : many workers lost their jobs
I hope that this helps you !
Answer:
Government directs and controls the production of goods.
Explanation:
There are numerous different types of economic systems, and in pretty much all cases they are the direct product of the political system in a country. One of the economic types is the command economy. This economic system is typical for communist societies and while it has been widely distributed during the 20th century, nowadays it has lost of lot ground.
prThe command economic system is an economic system that is totally controlled by the government. The government is doing all of the planning, directs, and controls all of the production of goods, but also how much of the goods the people are allowed to have. The basic idea of this economic system is to be selfsustaining, but in practice, it has proven to be highly inefficient and disastrous. Good examples of how this economic system functions were the Soviet Union, Maoist China, and at present North Korea and Cuba.
