1) Which of the following is biodegradable? a) Plastic Mugs b) Leather belts c) Silver foil d) Iron Nails 2) A food chain comprising birds, green plants, fish and man. The concentration of harmful chemical entering the food chain will be maximum in? a) green plants b) birds  c) fish d) man 3) First link in any food chain is usually green plants because? a) they are widely distributed b) they are fixed at one place in the soil c) they alone have the capacity to synthesise food using sunlight d) there are more herbivores than carnivores 4) Which of the following is a logical sequence of food chain? a) producer → consumer → decomposer b) producer → decomposer → consumer c) consumer → producer → decomposer d) decomposerproducer → consume 5) Which of the following statements about food chain and energy flow through ecosystem is false? a) Food webs include two or more food chains. b) All organisms that are not producers are consumers. c) A single organism can feed at several trophic levels. d) Detritivores feed at all trophic levels except the producer level. e) The lower the trophic level at which an organism feeds, the more energy available. 6) If a grasshopper is eaten by a frog, then the energy transfer will be from? a) producer to decomposer b) primary consumer to secondary consumer c) secondary consumer to primary consumer d) producer to primary consumer 7) In a food chain, the third trophic level is always occupied by a) herbivore b) carnivore c) decomposer d) producer 8) Which group of organisms are not constituents of a food chain? a) Grass, lion, rabbit b) Wolf, grass, snake, tiger c) Plankton, man, fish, grasshopper d) Frog, snake, eagle, grass, grasshopper 9) In the garden ecosystem, which of the following are producers? a) Insects b) Grass c) Snakes d) Rabbits 10) Which of the following is an autotroph? a) Lion b) Tree c) Insect d) Mushroom

Quiz On The Chapter Our Environment

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