Answer:
because of earth's favorable location
Step-by-step explanation:
Around 71% of earth is covered in water present in various forms. 3% is present as freshwater in glaciers, rivers and lakes. Rest is present as ocean water. Water can exist in liquid form on earth due to its strategic position in the solar system. It is enough far away from the sun to not lose its water content completely but not too far away to be frozen by extremely cold temperatures.