Question

Choose the odd one out:
1) Sunlight reaching the Earth.
2) Warmth felt in the palms when kept around the bonfire.
3) Hot air balloon rises up.
4) Warmth felt around the lighted electrical bulb.

Answer 1

Answer:

3) Hot air balloon rises up.

Explanation:

It is the odd one out because the rest are all examples of radiation, whereas a hot air balloon rising is an example of heated air being lighter than cold air.