Class 2 Exam > Class 2 Notes > Hindi for Class 2 (सारंगी) > Mind Map: बीज
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FAQs on Mind Map: बीज - Hindi for Class 2 (सारंगी)
| 1. बीज क्या होते हैं और उनकी भूमिका क्या है ? |  |
Ans. बीज पौधों के जीवन का एक महत्वपूर्ण हिस्सा होते हैं। ये पौधों के प्रजनन का माध्यम होते हैं और नए पौधों की उत्पत्ति का स्रोत होते हैं। बीज में पौधे के लिए आवश्यक सभी पोषक तत्व होते हैं, जो उसके विकास के लिए जरूरी होते हैं।
| 2. बीज किस प्रकार के होते हैं ? | |
Ans. बीज मुख्य रूप से दो प्रकार के होते हैं: एकलबीज (जैसे मक्का) और बहुबीज (जैसे सेम)। एकलबीज में केवल एक बीज होता है, जबकि बहुबीज में कई बीज होते हैं। इनके आकार, रंग, और संरचना में भी भिन्नता होती है।
| 3. बीज कैसे बनते हैं ? | |
Ans. बीज फूलों में गर्भाशय में निषेचन प्रक्रिया के बाद बनते हैं। जब परागकण और अंडाणु का मिलन होता है, तो एक नया जीव उत्पन्न होता है, जो फिर बीज के रूप में विकसित होता है। इसके बाद यह बीज पौधों के फल में विकसित होता है।
| 4. बीजों के महत्व क्या हैं ? | |
Ans. बीजों का महत्व कई कारणों से है। वे नए पौधों की उत्पत्ति का स्रोत होते हैं, कृषि में खाद्य उत्पादों का उत्पादन करते हैं, और पारिस्थितिकी तंत्र में जैव विविधता को बनाए रखते हैं। इसके अलावा, बीजों में पोषण के कई गुण होते हैं, जो मानव स्वास्थ्य के लिए लाभकारी होते हैं।
| 5. बीजों को कैसे सुरक्षित रखा जा सकता है ? | |
Ans. बीजों को सुरक्षित रखने के लिए उन्हें सूखे और ठंडे स्थान पर रखा जाना चाहिए। उन्हें हवा और नमी से बचाना आवश्यक है, ताकि वे खराब न हों। कई लोग बीजों को कांच के कंटेनरों में या प्लास्टिक बैग में रखकर सुरक्षित रखते हैं।
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