Statement I :
I. The potential energy that results from pushing water above mean sea level is transferred to kinetic energy that initiates the horizontal propagation of tsunami waves.
Statement II :
II. The vertical displacement of sea-water due to abrupt and jerky movements of fault blocks on sea-bed gives birth to tsunamis.

Statement I :
I. Evapotranspiration helps in classifying the climatic types.
Statement II :
II. Only temperature affects evapotranspiration, hence it can be used for classifying the climatic types.

Statement I :
I. There is a large-scale fluctuation of oil flow from oil wells prior to earthquakes.
Statement II :
II. Tectonic stress accumulates to a certain level, the pore pressure within a deep oil bearing stratum reaches its breaking strength causing oil to sprout along the oil wells.

Statement I :
I. Hard water does not give lather with soap.
Statement II :
II. Calcium and magnesium salts present in hard water form precipitate with soap.

Statement I :
I. Intellectual criteria which informed the reform movements are rationalism and religious universalism.
Statement II :
II. Social relevance was not judged by a rationalist critique.

Statement I :
I. The Russian Revolution of 1917 inspired the Indian working class movement.
Statement II :
II. The Non-Cooperation Movement (1921-22) saw the involvement of the Indian working class.