Multiple choice How much area of the earth is covered with water? One-fourth Two-thirds One-half Three-fourths Reveal answer Fill a bubble to check yourself B Correct answer Explanation About two-thirds or 71% of the area of the earth is covered by water. Water is present on the earth’s surface in the form of various water bodies like oceans, rivers, seas, canals, lakes, rivers, etc. Major part of the water is present in oceans.