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The vegetation of savannah consists of grassland with scattered small trees, but extensive areas have no trees. The forest development in such areas is generally kept in check by one or more or a combination of some conditions.

Which of the following are conditions?

1. Burrowing animals and termites
2. Fire
3. Grazing herbivores
4. Seasonal rainfall
5. Soil properties

Select the correct answer using the code given below.

(a) 1 and 2
(b) 4 and 5
(c) 2, 3 and 4
(d) 1, 3 and 5



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The forest development in savannah areas is generally kept in check by a combination of conditions. These conditions include:

Fire: Fire plays a crucial role in maintaining the grassland ecosystem of savannahs. Periodic fires prevent the encroachment of woody vegetation and promote the growth of grasses.

Grazing herbivores: Herbivores, such as zebras, wildebeests, and antelopes, play an important role in controlling the growth of vegetation in savannahs through grazing. Their feeding activities prevent excessive growth of plants, maintaining the grassland structure.

Seasonal rainfall: The savannah biome is characterized by a distinct wet and dry season. Seasonal rainfall patterns influence the growth of vegetation. The periodic availability of water regulates the growth of plants and influences the overall forest development.

Therefore, the correct answer is (c) 2, 3, and 4.


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