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.
it is lighter than water.
heavier because they are two different weights
Helium is lighter than air
carbon dioxide is heavier than oxygen therefore oxygen is lighter.
Depends on the solute: alcohol in water is lighter, salt in water is heavier than water.
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.
meson is heavier than electron but lighter than proton
Nitrous Oxide is heavier than air.
hydrogen
rhenium
Xenon is more than 4.5 times heavier than air.