What determines the atomic mass of an element?
A. The number of neutrons and electrons
B. The number of protons and electrons
C. The number of protons and neutrons
Answer: C
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Why is silicate the most prevalent mineral in igneous rock?
A) Silicates melt very easily. B) Silicates make up most of the earth's crust. C) Silicate is attracted to heat. D) Silicates are very heavy, so they are perfect for magma.
Chemical elements cannot be broken down into simpler substances
Indicate whether the statement is true or false
What is the difference between active and passive diapirism and how can we distinguish between them?
What will be an ideal response?
Changes in Earth's elliptical orbit around the Sun (eccentricity) varies over a ________ year cycle
A) 100,000 B) 175,000 C) 12.000 D) 41,000 E) 26,000