Ecosystem Question 83
83. In an ecosystem, which one shows one-way passage
[1988]
(a) free energy
(b) carbon
(c) nitrogen
(d) potassium
Show Answer
Answer : a
Hints & Solutions
(a) Energy flow takes place only in one direction i.e., producers $arrow$ herbivores $arrow$ carnivores whereas, nutrients use carbon, nitrogen and potassium shows cyclic flow.