(a) Name two biodegradable and two non-biodegradable wastes.
(b) Name the biotic and abiotic components of ecosystem.
(c ) What is the role of decomposers in the ecosystem ?
(d) If the plants get 10000 J of energy from the sun, how much energy will be available to tiger in the following food chain ?
`"Plants"to"Deer"to"Tiger"`
(e) A harmful chemical enters food chain comprising peacock, frog, grass, snake and grasshopper. Which of these organisms will have the maximum concentration of harmful chemical in its body ? Why?