It is estimated that 29 % of the Earth's surface lan't covered by water. What percentage of the Earth s surface is water-covered?

## Step 1: Understand the problemThe problem states that 29% of the Earth's surface is not covered by water. We are asked to find the percentage of the Earth's surface that is covered by water.## Step 2: Calculate the percentage covered by waterSince the total percentage of the Earth's surface (both water-covered and not water-covered) is 100%, we can subtract the percentage that is not covered by water from 100% to get the percentage that is covered by water.###