Question

Full form of GFC is?
A. Grazing food chain
B. Grazing fish chain
C. Gross food chain
D. Green forest conservation

Answer 1

Hint: You should recall all the abbreviations related to GFC from the chapter Ecosystem and it is also related to the food chain system.

Complete answer:
-GFC stands for Grazing food chain.
-Grazing is the process whereby herbivores eat plant material. Grazers employ a variety of strategies to ensure they maximize nutrient digestion and uptake such as rumination which is the process of chewing the cud.
-The grazing food chain is a food chain in which the energy in the lowest trophic level is derived from photosynthesis. In grazing food chains the first energy transfer is from plants to herbivores.

Additional Information:
 The food chain responsible for the flow of a larger fraction of energy in an aquatic ecosystem is Grazing Food Chain (GFC) while the terrestrial ecosystem is Detritus Food Chain (DFC).
Difference between Grazing Food Chain (GFC) and Detritus Food Chain (DFC) is:
GFC begins with the producers as the first trophic level whereas DFC begins with detritivores and decomposers as a first trophic level.
In GFC, energy comes from the sun whereas, in DFC, energy comes from detritus or organic remains.
GFC is generally large i.e. consists of more trophic levels than DFC.

So, the correct answer is option A.

Note:
Grazing fish chain and Gross food chain are the terms that don't exist in the ecosystem.
We can also go for option D “Green forest conservation”, if there is another option present at the place of option A. Because GFC for “Grazing food chain” is more common in comparison to “Green forest conservation”.