Video narration
Agar paudha khata nahi, to apna khana banata kaise hai? Sochiye, patti ek chhoti rasoi hai. Paani jadon se aata hai, aur carbon dioxide hawa se patti tak pahunchti hai. Rasoi ko kaam karne ke liye urja chahiye; yahan woh sooraj ki roshni deti hai. Dhyan rahe: roshni paudhe ka khana nahi. Woh khana banane ki urja hai. Patti isi urja se paani aur carbon dioxide ko cheeni mein badalti hai. Ise photosynthesis, yaani roshni se khana banane ki prakriya, kehte hain. Saath hi oxygen banti hai aur hawa mein nikal jaati hai. Paudha cheeni ko urja ke liye istemal karta hai, ya baad ke liye jama rakhta hai - yeh sab turant badhne mein nahi lagta. To paudha bina khaaye bhi khana banata hai: uski patti sooraj ki roshni se paani aur hawa ki carbon dioxide ko cheeni mein badalti hai, aur oxygen chhodti hai.