Consider the following statements: 1.Some microorganisms can grow in environments with temperature above the boiling point of water.

UPSC pre 2023

 Consider the following statements:


1.Some microorganisms can grow in environments with temperature above the boiling point of water.

2.Some microorganisms can grow in environments with temperature below the freezing point of water.

3.Some microorganisms can grow in highly acidic environment with a pH below 3.


How many of the above statements are correct?


(a) Only one


(b) Only two


(c) All three


(d) None




Answer - C 



Tip - Usually statement having Some are correct.


Example - UPSC pre 2023 https://upscpreviousyearquestion.blogspot.com/2024/01/consider-following-statements-1-some.html


Tip


Question asked in UPSC pre exam specially in environment is getting random or difficult becasue Indian forest 

service pre is clubbed together with upsc pre exam.


So, do not worry about difficult pre question of environment because your competition will not be able to do it.



Archaea is a domain of single-celled organisms. These microorganisms lack cell nuclei and are therefore prokaryotes.


Pyrococcus furiosus, an archaeon which thrives at 100 °C, first discovered in Italy near a volcanic vent. So, 1 is correct.


Psychrophiles or cryophiles can grow in as low as -20 °C. So, 2 is correct.


Acidophiles can grow in acidic environment. So, 3 is correct.




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