Dear student

Please refer the solution below for the said query

Grazing food chain: It starts from green plants

Grass $\to$Grasshopper $\to$Frog$\to$Snake$\to$Vulture

Detritus food chain: It starts from dead and decaying organic matter

Decaying plant material $\to$Earthworm $\to$Bird $\to$Snake $\to$ Vulture