Q. Consider the following statements:
  1. The total land area of Earth is approximately 1,475 lakh square kilometers.
  2. The ratio of land area to water area of Earth is approximately 1 : 4.
  3. The maximum percentage of Earth's water is found in the Pacific Ocean.
Which of the above statements is/are correct? (UPSC Prelims 2005)

Answer: 1 and 3
Notes: The total land area of Earth is about 147,526,000 square kilometers (approximately 1,475 lakh km²). The land-to-water area ratio is closer to 1 : 3, not 1 : 4. The Pacific Ocean, being the largest ocean, contains the maximum percentage of Earth's water. Thus, statements 1 and 3 are correct, while statement 2 is incorrect.
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