Answer: C) extremely rapid cooling
Explanation:
When magma goes through extremely rapid cooling and especially if it did not dissolve enough water into it, it could freeze to glass or the mineral crystals that will be formed will be so small, they will look like glass.
This is because the reactions that occur to create minerals are affected directly by temperature such that if the magma cools down extremely slowly, it will form very large crystals but extremely fast would result in small crystals.
Answer:
The demand in Europe for commodities such as tobacco and sugar.
Explanation:
Answer:
Herophilus and Erasistratus were so important to human anatomy because they were thought to be the first physicians to experiment on a human body.
Explanation:
Answer:
166.67%
Explanation:
The computation of the percentage increase in grain production for the period 1950-1955 is shown below:
= (Year 1995 grain production - Year 1950 grain production) ÷ ( Year 1950 grain production)
= (1,600 million tons - 600 million tons) ÷ (600 million tons)
= 1,000 million tons ÷ 600 million tons
= 166.67%
Hence the increase in percentage is 166.67%
Answer:
In order to express the results as a percent, divide the nutrient content (which is expressed in ppm) by 10,000. For example, if the reported value for P2O5 is 2,690 ppm, the calculation to convert to percent would be: 2,690 ppm ÷ 10,000 = 0.269%.
