I am thinking the rock that forms from lava that cools quickly is D) Obsidian.
Answer:
Explain why high salt concentration can kill organisms?
High salt concentration kills organisms because salts are naturally acidic and high concentration negatively alters the system of organisms
Explanation:
Organisms tends to survive at optimum pH rather than either low or high, high salt concentration affects the biological system of organism, hence; result in its death.
