UPSC Civil Services 2023 Prelims General Studies Paper I

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Question : 16 of 100
 
Marks: +1, -0
Consider the following statements :
1. Some mushrooms have medicinal properties.
2. Some mushrooms have psycho-active properties.
3. Some mushrooms have insecticidal properties.
4. Some mushrooms have bioluminescent properties.
How many of the above statements are correct? 
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