Answer:
C). Corundum
Explanation:
Corundum is a crystalline type of aluminum oxide that usually contains iron, titanium, vanadium and chromium traces. Corundum is an incredibly durable and hard material. It is the third hardest mineral, after moissanite and diamond.
A geologist determine that a sample of a mineral can’t be scratched by a steel naill but can be scratched by a Masonary drill bit. Based on this information, the sample mineral has to be softer than CORUNDUM.
Due to Corundum's hardness , it can scratch almost every other mineral, and Since corundum is harder than the drill bit of masonry that can smash the mineral sample and thus the mineral sample must be softer than corundum.
Venezuela's economic wealth is accounted for by petroleum.
Answer:
When there is a know and a large supply of something.
The answer
The United States is vast in terms of area and large cities are distributed across the country
Explanation
More clearly it means that America has lots of major cities where a primate city is the dominant city in that country
The most likely conclusion that could be drawn about the effects of urbanized in china is that pollution rate has increased as the urbanization rate increased in the country.
<h3>What is an increased
urbanized rate?</h3>
An increased urbanization refers to the rapid or slow increasing of the population of people such as immigrant or town residers to moved to the city for search of better lifes, better job, improved standard of living etc.
However, the movement of people to the urban area has contributed massively to the spike in the country's pollution rate because of increase consumption at the region.
Hence, the most likely conclusion that could be drawn about the effects of urbanized in china is that pollution rate has increased as the urbanization rate increased in the country.
Therefore, the Option D is correct.
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