Rate of evaporation from a water surface increases if

i) difference of vapour pressure between water and air is increased

ii) velocity of wind is decreased

iii) concentration of soluble solids in water is decreased

The correct answer is

- 1
  
  (i) and (ii)
- 2
  
  (i) and (iii)
- 3
  
  (ii) and (iii)
- 4
  
  (i), (ii) and (iii)

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