This is why you should never enter a random cave hole without checking first. A cave in Costa Rica is one of nature's death traps. When a man waved a lit torch in the upper part of the cave, nothing unusual happened. But as soon as the torch was moved closer to the ground, it instantly went out. This occurs primarily because the concentration of carbon dioxide is too high at the bottom of the cave. So, if you encounter such a cave, it’s crucial not to venture in recklessly, as it could be extremely dangerous.
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