Assuming that 70 percent of the earth’s surface is covered with water at average depth of 0.95 mi, estimate the mass of the water on earth. one mile is approximately 1.609 km and the radius of the earth is 6.37 × 10^6 m. answer in units of kg. your answer must be within ± 20.0%

The mass of the water on earth is

Explanation:

Given that,

Average depth h= 0.95 mi

Radius of earth

Density = 1000 kg/m³

We need to calculate the area of surface

Using formula of area

Put the value into the formula

We need to calculate the volume of earth

Put the value into the formula

Now, 70 % volume of the total volume

We need to calculate the mass of the water on earth

Using formula of density

Put the value into the formula

Hence, The mass of the water on earth is