जीवन की शुरुआत कैसे हुई : हिंदी पीडीऍफ़ पुस्तक – सामाजिक | Jeevan Ki Shuruat Kaise Hui : Hindi PDF Book – Social (Samajik)
Pustak Ka Vivaran : Ye Janvar Aaj ke Medhakon ki tarah jameen par aur Pani donon sthanon par rah sakte the. Unhen Ubhaychar (Amphibian) kaha jata tha. Ubhaychar apne ande Pani mein dete hain. Uname se jyadatar jameen par rahate hain, lekin kuchh Nadiyon aur samudra mein bhi rahate hain. Yahan kuchh prarambhik ubhaychar Sarisrp (Reptiles) hain. Pahale Sarisrap……..
Description about eBook : These animals could live both on land and in water, like today’s frogs. They were called amphibians (amphibians). Amphibians lay their eggs in water. Most of them live on land, but some also live in rivers and seas. Here are some early amphibian reptiles. First reptile………
