The correct answer is<span> a. Volcanic glass
Volcanic glass is also known as Obsidian. It is formed when lava cools down too rapidly and crystals grow minimally, without grains.</span>
The answer is b) "No known sexual mode of spore formation
I think itts virchow
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Answer:
the answer is, D
Explanation:Switching off lights when not in use protects environmental quality.
