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It looks like children working in a coal mine so i guess Gases, Mines could collapse, and possibly get sick from fumes or something.
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During the Persian Wars, the Battle of Thermopylae (480 bce) took place in central Greece near the Thermopylae mountain pass. Leonidas led the Greek soldiers, which were largely Spartans. Leonidas and a small group remained behind to stop the attack and were beaten, despite the fact that the main army had been sent into retreat.
Explanation:
DescriptionStock of a corporation, is all of the shares into which ownership of the corporation is divided. In American English, the shares are collectively known as "stock". A single share of the stock represents fractional ownership of the corporation in proportion to the total number of shares.
I think its trains but it also might be cars. I dont imagine there would be cars in rural areas. So probably Trains. If I’m wrong, please correct.