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
Economic geography is the study of the location, distribution and spatial organization of economic activities across the world. It represents a traditional subfield of the discipline of geography. However, many economists have also approached the field in ways more typical of the discipline of economics
thanx heyaaa
Answer: The Himalayan Mountains are at a convergence plate boundary between the Eurasian plate and the Indian plate.
Brainliest please
Cause they can't afford a house they don't have enough money for it hope this helps
