Sagot :
5×10^-6 mg = 5×10^-15 tonnes
1,320×10^6 km3 = 1,320×10^18 litre
La masse totale est:
5×10^-15 × 1,320×10^18 = 6,6 × 10^3 tonnes
5×10^-6 mg = 5×10^-15 tonnes
1,320×10^6 km3 = 1,320×10^18 litre
La masse totale est:
5×10^-15 × 1,320×10^18 = 6,6 × 10^3 tonnes