Answer:
Plants eaten by rats, rat eaten by snake and snake eaten by hawk.
Step-by-step explanation:
Food chain may be defined as the sequential tropic levels of organism being eaten by other organisms. Food chains combine together in the environment to form food web.
Food chain starts with the producer (plants). Plants are eaten by the consumers present at first trophic level (rat). Second trophic level organisms eat the organism of first trophic level (snake). Third trophic level organism feeds on the second trophic level (hawk).
Thus, the food chain is plants eaten by rats, rat eaten by snake and snake eaten by hawk.