Question Discussion & Solution

Image is hidden in option 3 as followed.

Concept:

• Water Harvesting: Water harvesting is a practice to conserve water by collecting rainwater in an organized way.
  • The rainwater is not allowed to flow and get wasted but collected in tanks.
  • The main purpose however is not the collection but the enhancement of groundwater level.  
  • The collected water through tubes is made to recharge groundwater.
  • Maintenance of groundwater is long term sustainable structure for water conservation.

Here the logic is the methods which consumes water:

Explanation:

Kneading:

• Kneading is a process in the making of dough by mixing water and flour.
• Example: Kneading dough for roti. 
• Consumes water

Swimming also need water to do so.

Washing clothes is also a process that consumes.

While combing hair, no need of water.

Correct Option -2

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Curator means in charge of a museum similarly Warder is in charge of Prison.

The correct answer is the save as.

• Using the F12 key in MS Word, Save as dialogue box opens​.

​Key Points

• F12 key used with other keys in MS word:​.
  • Ctrl+F12 
    • ​Opens a document in Word.
  • Shift+F12 
    • Saves the Microsoft Word document (like Ctrl+S).
  • Ctrl+Shift+F12
    • Prints a document in Microsoft Word.

Additional Information

• Keys for performing a mail merge
  • Preview a mail merge
    • ​ALT + SHIFT + K
  • ​Merge a document
    • ​ALT + SHIFT + N
• ​Insert Table
  • ​To open the Insert tab to insert tables, pictures, and shapes, headers, or text boxes.
    • Alt+N
• Insert Picture
  • ​The shortcut key to import a picture is Ctri+G