Q. India’s largest open-air fernery was recently inaugurated in which of the following states?

[A] Kerala

[B] Karnataka

[C] Himachal Pradesh

[D] Uttarakhand

Answer: D
Notes:

Recently, India’s Largest open air fernery was inaugurated in Uttarakhand’s Ranikhet. 

About open air fernery: 

The fernery is home to a large number of fern species, some of which are endemic to the state, some hold medicinal value while some are threatened species that demand care and conservation. 

The fernery has the largest collection of fern species, second to only Jawaharlal Nehru Tropical Botanical Garden and Research Institute (TBGRI), Thiruvananthapuram. 

However, it is the country’s first open-air fernery in natural surroundings which is not under any poly-house/ shade house. 

Source: All India Radio.