Notice
The Science Club is excited to announce an Inter-House Science Model-Making Competition for students of Classes IX – XII. Each house can register a maximum of 3 teams, with 2 members per team.
    Date: [Insert Date]
    Time: [Insert Time]
    Venue: School Science Lab
  
Interested students should submit their names to their respective House Captains by [Registration Deadline]. Exciting prizes await the winners! For more details, contact the undersigned.
    Mitali/Mukesh
    President, Science Club
  
Write a letter to the editor of a local newspaper expressing your concerns about the increasing “Pollution levels in your city”. You are an environmentalist, Radha/Rakesh, 46, Peak Colony, Haranagar. You may use the following cues along with your own ideas: 
In the given reaction sequence, the structure of Y would be: