Question : In the grasslands, trees do not replace the grasses as a part of an ecological succession because of:
Option 1: Limited sun light and paucity of nutrients
Option 2: None of options
Option 3: Insect and fungi
Option 4: Water limits and fire
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Correct Answer: Water limits and fire
Solution : The correct answer is water limits and fire.
Grasslands are formed in zone of transition between forest ecosystem and desert ecosystem. They are also considered as the region of ecotone. Grasslands are usually created when there is lack of water to sustain a forest and because it has vegetation in the form of dry grasses, they are more prone to forest fires.
Because of the above two mentioned reasons grasslands do not become forests as a part of ecological succession.
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