Arrange the sequence of natural events and reactions that lead to a child's happiness after weather changes. 1 = Rainbow 2 = Rain 3 = Sun 4 = Happy 5 = Child Choose the correct logical order from cause to effect.

Given data

• Sunlight and rain together can produce a rainbow.
• A child sees the rainbow and becomes happy.

Concept / Approach
A rainbow requires both Sun and Rain. Once the rainbow appears, the Child observes it and feels Happy.

Step-by-step chain
Sun (3) + Rain (2) ⇒ Rainbow (1). Child (5) observes the rainbow ⇒ Happy (4). Therefore: 3, 2, 1, 5, 4.

Verification
Putting Rainbow before Sun or Rain breaks causality; placing Happy before Child is illogical.

Final Answer
3, 2, 1, 5, 4