Question

Two separate pits A and B are dug in the ground about 30cm
deep. Material C is placed in pit A whereas another material D is
placed in pit B. Both the pits are then covered with soil. When the
pits were dug up after a month, it was found that material C
remained as such but material D had rot completely.
i) What type of material is C & D?
ii) Give one example of material like C and D.
iii) What is responsible for the rotting of material D?

Answer 1

Answer:

I) material C in non biodegradable whereas Material D is biodegradable

ii) C- polythenes, plastic

D- wastes of fruits and vegetables

iii) insects, decomposers, etc.