It is because the enzymes in the plant are breaking down cellulose.
An ideal gas is one in which the gas molecules do not
interact with each other, hence intermolecular forces of attraction is
negligible. For this to occur, the pressure must be low and temperature is high
so that the volume or space between molecules is very large. This can be taken
from the ideal gas equation:
PV = nRT
where an increase in temperature and decrease in pressure
makes the volume increase
<span>So a noble gas other than radon which would depart most
readily from ideal gas behaviour must have also a high density. From the
tables, this would be Xenon.</span>
The wind would change from east to west to north to south