Read the following statements.

(I) The levels of thermal tolerance of different species determinate a large extent their geographical distribution.

(II) Life on earth originated in water and is unsustainable without water.

(III) The salt concentrations (measused or salinity in parts pre thousand) is less than 5 in inland waters, 30-35 in the sea and > 100 in some hypersaline lagoons.

(IV) Many animals use the diurnal and seasonal variations in light intensity and duration as cues for timing their foraging, reproductive and migratory activities.

Which of the given above statements are correct?