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Why are elevators useful?
Elevators made skyscrapers practical buildings, beyond about 10 stories going up and down stairs is tiring and impractical when moving large objects.
Identify the simple subject in the sentence there are too many people on this elevator?
All elevators have a certain capacity that they must maintain. There is not a number of people that must be adhere to but a certain weight capacity.
What are corrugated plastic sheets used for?
Ceilings in elevators - they allow light through. package air-to-air heat exchanger
How many lakes are in the world?
there are 302 million lakes in the world:)
What is the worst elevator accident in history?
The most fatal elevator accident occurred on November 11th 2001. in the world trade center. After the two planes struck the tower(s), it also savage most of the cables that lift the elevators including the governor cable (a safety cable which yanks on the breaks to stop the cab from falling if others were to fail) as as result most of the people died this way. But others were lucky to last on the remaining ones until help arrived (which mostly didn't happen). But only a very few (22 or so survived) all and all. 200 people in total were killed in the elevators in the twin towers.
