In the grasslands, trees do not replace the grasses as a part of an e...

UPSC Prelims 2013 Environment & Ecology

In the grasslands, trees do not replace the grasses as a part of an ecological succession because of

Explanation

The precipitation is so erratic that drought and fire prevent large forests from growing. - Grasses can survive fires because they grow from the bottom instead of the top. - Their stems can grow again after being burned off. - The soil of most grasslands is also too thin and dry for trees to survive.

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