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प्रश्न
State whether the following statement is true or false.
Lichens serve as pollution indicators.
सत्य या असत्य
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उत्तर
This statement is true.
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क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
State whether the following statement is true or false.
Lichens serve as pollution indicators.
This statement is true.