Which characteristics are used to describe air? check all that apply.
altitude
odensity
o mass
o pressure
radiation

Which measure of humidity, relative humidity or dew point, best describes the actual quantity of water vapor in a mass of air

Which of the following types of nonrenewable fuel sources requires the storage of radioactive waste? a. coal b. nuclear c. solar d. oil

According to a recent survey, the local government wants to classify people according to their income earning capacity. they want to do so in order to provide special facilities for the poor. who among the four individuals will be classified as poor? a. joseph earns $2.25 per day b. maria earns $1.50 per day c. rosita earns $2.00 per day d. tim earns $ 1.00 per day