Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test People Development & Environment Basics of Environment Environment
The word ‘Ecosystem’ was coined by
1
Einstein
2
A. G. Tansley
3
Mc Nanghton
4
More than one of the above
5
None of the above