Read following statements carefully and select incorrect ones.

(i)  Development of fertile top-soil takes centuries, but it can be easily removed due to human activities such as over-cultivation, unrestricted grazing, etc.
(ii) Waterlogging results in soil salinity.
(iii)  UV rays are responsible for degradation of ozone shield in atmosphere.
(iv)  Ozone present in stratosphere acts as a shield absorbing UV radiation coming from Sun.
(v)  Global warming can be controlled by increasing use of fossil fuels.