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Question

Choose the correct answers from the alternatives given.
The first organism to be found on a bare rock formation is a

A
moss
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B
lichen
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C
fern
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D
grass
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Solution

The correct option is B lichen
Lichen forms a crust over bare rocks and starts forming soil from their organic remains by secreting carbonic acid which results in the chemical breakdown of rocks.
So, the correct option is 'lichen'.

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