I can see you have a big heart inside.
Answer:
The outer core is mostly made out of iron.
Explanation:
Answer:
3 North Sea and the English Channel
Explanation:
sorry if I'm wrong
The answer would be A, for the exact reason it gives you
Answer:
A. Obsidian
Explanation:
It fits the property described in the question.
It cools so fast that no visible crystal or grain could form. It has high silica Composition, black and glassy. It is also used to make tools with sharp edges