Select the correct measurements. Ratio Conversion Table
kilograms (kg): grams (g) 1:1,000
grams (g): milligrams (mg) 1:1,000
kilograms (kg): milligrams (mg) 1 : 1,000,000
Using the conversion table, find the quantities equivalent to 1.75 grams.
0.00175 kg
1,750 mg
17.5 g
175 mg
17,500 kg

59/96 is the ratio hope this not 100% sure though : /

Planet earth has a mass of 5.9726x10²⁴ kg.then: 5.9726x10²⁴ kg=100% of the total earth mass.if the water´s mass=5x10-4 % of the total mass, we can solve this problem by the rule of three.5.9726x10²⁴ %*10⁻⁴ %x=(5.9726x10²³ kg)(5*10⁻⁴  %) / 100 %=2.9863x10¹⁹ kganswer:   the mass of the planet´s water would be   2.9863 x 10¹⁹ kg.