सवाल : ऐसी कौन सी चीज है जो बाहर तो फ्री मिलती है और हॉस्पिटल में बहुत महंगी मिलती है ?
Question: What is the thing that gets free outside and gets very expensive in the hospital?
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Oxygen is the thing that gets free outside and gets very expensive in the hospital.
- Oxygen is needed by animals and humans for breathing.
- As we know, animals and humans get their oxygen from the environment as plants release oxygen as a by-product of photosynthesis.
- However, inside a hospital , a patient in a critical condition needs to be given air or oxygen through a ventilator.
- Ventilators are machines to blow extra air in a patient and are costly.
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