What is installed in a vertical farm to facilitate photosynthesis during cloudy days?
Which of the following may not be a benefit of the vertical farm?
(1) Use less water
(2) Use less fertilisers
(3) Use less pesticides
How many types of cone cells are present in our eyes?
Send your name and answers (both Brain Builders and Mission of the Month) with JPC membership number and district to: PPRB, 11/F Arsenal House, Police Headquarters, 1 Arsenal Street, Wan Chai, or to any district JPC Clubhouse no later than 18 April 2015.
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