Answer:
The heat from the Earth's cores radioactive process makes the lithospheric plates move sometimes away or toward each other.
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Answer:
Group 1
Explanation: because the compound has a formula of M2O , the number of valence electrons of M should be 1.
The answer is D I hope this helps you !
Answer:
Extractive metallurgy
Explanation:
Extractive metallurgy is the practice of removing valuable metals from an ore and refining the extracted raw metals into a purer form.
Answer: When a substance is pure, it is composed of one type of molecule. For example, table salt is only composed of (more or less) salt molecules, while seawater has water and salt molecules. A more complicated example of a non - pure substance is soil. It has many different types of nutrients and compounds.
