1The process which consumes carbon dioxide and produces oxygen is.arespirationbcombustioncphotosynthesisdfossilizationShow answer
2Greenhouse gasesaburn to add heatbtrap heatchelp heat to escapeddo not allow heat to reach earth surfaceShow answer
3The interaction in which both members get benefit from each other isamutualismbpredationccommensalismdcompetitionShow answer
5Rhizobium is a group of bacteria which live in the roots of some plants. They fix nitrogen for plant and get food in return. This relationship isaparasitismbcommensalismcmutualismdcompetitionShow answer
6In a food chain, which type of organism utilizes most of the sun energy coming to earth?aProducersbPrimary consumerscSecondary consumersdTertiary consumersShow answer
7In an ecosystem, the energy flow is alwaysabidirectionalbrandomcdown in a pyramiddunidirectionalShow answer
8Carnivorous plants food on insects because these plants grow on marshy places deficient inacarbonbnitrogenccalciumdironShow answer
10The most common non-biodegradable pollutant isawoodbleaf littercbodies of dead animalsdplastic bagsShow answer
