It usually has greater capacity for fuel storage.
Yes.
No, lighter. Two pounds is 32 ounces.
The answer depends on whether you simply wish to identify the different apple or whether you also want to know whether it is heavier or lighter than the others. The question is, therefore, underspecified.
Individual atoms may be heavier or lighter. Also, the spacing between atoms may vary.
No a gram is 1000 times lighter than a kilogram (kilo is a prefix meaning a thousand). So 4 kilograms is 1000 times heavier than 4 grams.
Saturn is much lighter than water. It is a gas giant made primarily of hydrogen and helium, with a density lower than that of water.
heavier because they are two different weights
Helium is lighter than air
Not necessarily. In a solution, the solute can make the solution heavier compared to the solvent alone. However, the overall weight of the solution would depend on the concentration of the solute in the solvent.
Gold is heavier than lead, but lighter than tungsten.
LIGHTER
Just, simply, Lighter than Air Vehicles are lighter than air, so that makes them fly, and Heavier than air vehicles are heavier than air, but they use airfoils on the wings to fly.
rhenium
hydrogen
One is lighter and the other one is heavier. :D
Nitrous oxide is slightly heavier than air.
Heavier but safer. Look what happened to the Hindenburg:(