Question

what is meant by evaporation state and explain any two factor affecting evaporation

Answer 1

Evaporation is the process by which water changes from a liquid to a gas or vapor. 
the two factors are :
Humidity
temperature

Answer 2

The process of liquid changing into vaporisation even below its boiling point is called evaporation.
factor affecting evaporation are :-)
1 Temperature:-) evaporation increases on increase in temperature.
2 Surface area:-) evaporation increases when the surface area increases.
3 Humidity:-) when humidity of air is low then rate of evaporation is high. if humidity is high than evaporation is low.
4 Wind:-) the rate of evaporation increases with increase in speed of wind.