User blog comment:Sumeet007/Control on All 4 Elements/@comment-24459390-20140501202350

1.1. Fire Manipulation.

1.1.1. Fire is a chemical reaction.

1.2. Water Manipulation

1.2.1. Maybe with a form of static electricity or magnetism.

1.3. Earth Manipulation

1.3.1. Ditto on 1.2.1.

1.4. Air.

1.4.1. Fans. :D But maybe using electricity to cause discrete changes in air pressure to cause winds.