greetings. i just joined your e-group recently and have found most
discussions to be very informative. i have read the discussion on the
saturation of air. a related point :
dry air is actually denser than moist air, contrary to what majority of
our clients thought. in one particular session, i encountered a teacher
who was quite hard to convince. kindly provide me with a thorough
explanation.
thanks.
alvin c. flores
university of the philippines
institute for science and mathematics education development