Environmental Science and Ecology - Single MCQs (Page 54)

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Q531. One of the major difficulties in the biological control of insect pests is that?...Q532. Ecosystem receives nitrogen from outside through?...Q533. If we completely remove the decomposers from an ecosysters, its functioning will...Q534. Mark the incorrect statement with reference to carbon cycle?...Q535. The sulphate rocks are formed in ocean by leaching of?...Q536. The maximum amount of CO2 fixed by green plants by way of photosynthesis in a ye...Q537. Hydrological cycle is under the control of?...Q538. According to Odum the light absorbed by the plant cover in terms of kcal/m2/day ...Q539. The SO2 is returned to the atomsphere by?...Q540. Which ecological cycle is directly driven by sunlight?...