Read the following factors of migration carefully and choose the correct option related to pull factors:
I. Peace and stability
II. Unfavourable climate
III. Protection of property
IV. Economic backwardness
Only II and III are correct.
Pull factors in migration refer to positive conditions that attract individuals to a particular location.
Peace and stability (I) and Protection of property (III) are examples of pull factors, while Unfavourable climate (II) and Economic backwardness (IV) are push factors.
Match List-I with List-II
| List-I | List-II |
|---|---|
| (A) United Nations Security Council | (II) New York |
| (B) International Court of Justice | (III) Hague |
| (C) International Labour Organisation | (I) Geneva |
| (D) United Nations Educational Scientific and Cultural Organisation | (IV) Paris |

A ladder of fixed length \( h \) is to be placed along the wall such that it is free to move along the height of the wall.
Based upon the above information, answer the following questions:
(iii) (b) If the foot of the ladder, whose length is 5 m, is being pulled towards the wall such that the rate of decrease of distance \( y \) is \( 2 \, \text{m/s} \), then at what rate is the height on the wall \( x \) increasing when the foot of the ladder is 3 m away from the wall?