Which staement best describes air pressure at high altitudes? a) air pressure descreases as altitude increases b) air pressure does not change as altitude in creasesc) it is impossible to accurately measure air pressure at high altitudesd) air pressure increases as altitude increases

a  solution  is always transparent, light passes through with no scattering from solute particles which are molecule in size. the  solution  is homogeneous and does not settle out. a colloid is intermediate between asolution  and a  suspension. while asuspension  will separate out a colloid will not.