Nitrogen hope that helped
Answer: When the volume of the air increases, the air becomes less dense and rises. The rising, expanding air then creates an area of low-pressure.
Explanation: Edmentum
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
Madagascar is off the East coast of southern Africa
