Teaching BPSC बिहार मध्य विद्यालय (6 to 8) शिक्षक भर्ती 4.0 Mock Test General Knowledge Ecology and Environment Ecology and Functions of an ecosystem
What is the flow of energy in a food chain?
1
Tridirectional
2
Bidirectional
3
Unidirectional
4
More than one of the above
5
None of the above