Carbon dioxide (CO2)
Argon (Ar)
Hydrogen (H)
Helium (He)
According to Charles' Law the volume of an ideal gas is directly proportional to its absolute temperature in Kelvin keeping the pressure constant.
V∝ T, P is constant
where V, T and P are volume, temperature and pressure
= 
where V₁, T₁, V₂ and T₂ are initial volume, initial temperature, final volume and final temperature.
The sun gives off light energy to help plants photosynthesize and make food
A have no potential energy
Answer: O fluorine to complete the octet rule
that right