Q. Consider the following differences between Grazing food chain and Detritus food chain:

1. While grazing food chain begins with green grasses at first trophic level, detritus food chain begins with dead and decaying organic matter.
2. While grazing food chain adds energy to the ecosystem, detritus food chain consumes energy from the ecosystem.

Which of the above statements is / are correct?
Answer: Both 1 and 2
Notes: Statement 1 is correct: Grazing food chain starts with green plants, while detritus food chain starts with dead organic matter. Statement 2 is also correct: the grazing food chain channels solar energy, whereas the detritus food chain relies on energy from the decomposition of organic matter. Thus, both statements accurately describe the respective food chains.