our bodies are mainly composed of liquid (water), which is measured in ml's, so 4ml's has greater mass eventhough is not solid, it's still part of the weight added to anything solid or space.
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The density is 8g/4mL = 2 grammes per mL. The specific gravity is 2.0
It's 6 ml.
2 g/cm3. This can be done by using the formula for density (mass/volume) and conversion 1mL=1cm3 The density of that liquid is 2.
A planet with a greater mass does not necessarily have greater surface area than one with less mass. The planet could be made of denser material and have a smaller surface area. Mass doesn't always mean volume.