Read the passage carefully: 1. Twenty-six-year-old Verhaen Khanna is not your garden variety green crusader. He's on a mission to cure 'tree blindness'- the habit of not looking at trees. "People just walk past them," he complains, at his New Friends Colony residence office, clad in Batman pyjamas and bathroom slippers. Khanna, as part of New Delhi Nature Society which he set up last year, is educating Delhities about trees in a unique way- by teaching them how to climb them. 2. A generation ago, the practice was commonplace but with today's increasingly indoor living, learning to scale the neem next door sounds like a spot of daredevilry. Anuj Wadhwa, a 26 year old garment exporter learnt to shimmy up trees a few months ago. "Spending time with nature and climbing trees become a spiritual exercise for me. Once you're in a tree, you become part of its ecosystem, which includes birds, insects, fruits and flowers, " says Wadhwa who can spend 40-45 minutes hanging out on tree branches, sometimes with a cup of green tea in hand.3. But it's all about barking up the tree right. "It depends on how and where you sit," Khanna points out. "You have to find a cosy nook, maybe a Y-or a V-shaped branch. Find a hook to rest your arm. Or, you can lie down. It can get so comfortable that I have to warn people from falling off to sleep." A trained commercial pilot, Khanna organizes periodic campouts around Delhi - Jahanpanah city forest near GK-II, Asola Sanctuary, Lodhi Garden, Nehru Park, colony parks in New Friends Colony, Maharani Bagh, GK-I etc.- where he not only teaches members how to climb trees, but also to make a fire, count GPS satellites and stars. 4. While Khanna provides tents and other equipment on these free jaunts, participants have to bring their own food. The tree-lover funds his woody ambitions with his day job as business developer, and as a light painting artist at OLE India- a collaborative of professionals and free thinkers. He has also uploaded tree-climbing tutorials on YouTube. When climbing a straight trunk (coconut or palm), ascend using both arms in tandem (like in a hug) instead of alternating them. But banyan trees, with thick, low lying branches and vines offer a relatively easy climb. 5. Anyone can join NDNS and it's free. The year-old society has been attracting members through word of mouth and sight- the image of men and women sitting atop trees in various city parks. Khanna has organized six outdoor camps in the past year and has taught around 30 people to climb trees. Once up, he briefs participants about the tree and its ecosystem. Details like what kind of fruit and flower it bears, their benefits, the shape and size of leaves, kinds of insects, birds and squirrels living on it, any folk tales associated with it are discussed and shared. Khanna says books, internet and hands-on experience working on farms is the source of his tree knowledge.Tarun Mal, an agriculturist who lives in Gurgaon and runs a farm in Alwar, says the first time he climbed, he was scared of falling. "But once you're inside the canopy, it's a different world and you don't want to come down," he says. For Masrat Khan, a communication expert, the experience brings out the child in her.When not scaling trees, NDNS members are busy doing "guerilla gardening"-planting hardy local tree varieties like neem, babul and jamun wherever possible and often without permission. Their mission to cure tree blindness continues. - Shobhita DharOn the basis of your understanding of the passage answer the following questions with the help of the given options :(a) Verhaen Khanna is on a mission to cure (i) Night blindness (ii) Tree blindness (iii) Colour blindness (iv) None of the above(b) Spending time with nature and climbing trees has become a (i) spiritual exercise (ii) physical exercise (iii) aerobic exercise (iv) All the above(c) When climbing a straight trunk use (i) both arms in tandem (ii) both legs in tandem (iii) both arms and legs in tandem (iv) None of the above(d) When not scaling trees, NDNS members are busy doing (i) Tree Gardening (ii) Flower Gardening (iii) Guerrilla Gardening (iv) None of the aboveAnswer the following question briefly:(e) What do you mean by ‘tree blindness’?(f) What education is being imparted to Delhiites by Verhaen Khanna?(g) What is Anuj Wadhwa’s opinion about nature and climbing trees?(h) What do you become when you are in a tree, according to Wadhwa?(i) Who all can join NDNS and what do they teach?(j) What varieties of trees are planted by the NDNS members??(k) Find words from the passage which means the same as:i. Biological Environmentii. Excursion