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Which of the following type of ecosystem is expected in an area where evaporation exceeds precipitation, and mean annual rainfall is below 100mm:A. GrasslandB. Shrubby forestC. DesertD. mangrove |
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Answer» Correct Answer - c In true desert biome rainfall is less than 100mm/year, characterised by extremely hot days end cold nights. Evaporation from true desert alwaays exceeds 7-50 times the precupltation (rainfall). Desert ecosystem of biomes are more in Northerm hemisphere than Southern hemisphere. Whereas Grassland ecosystem receives medium rain fall ranging from 25-75 cm/yr, but evaporation rate is not higher than precipitation rate. Shrubby forest receives rainfall 90 150 cm/yr. Mangrove forests receive annual rainfall ranging from 100 150 cm/yr. Thus, there options are wrong. |
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