Areliable source is one that
a. you found online
b. should be copied directly
c. does not need to be cited
d. can be trusted to be accurate

The size (radius) of an oxygen molecule is about 2.0 ×10−10m. make a rough estimate of the pressure at which the finite volume of the molecules should cause noticeable deviations from ideal-gas behavior at ordinary temperatures (t= 300k ). assume that deviatons would be noticeable when volume of the gas per molecule equals the volume of the molecule itself.

He nucleus contains the cells genetic material in the form of dna. dna is organized into our chromosomes, which are made up of thousands of that determine our traits.

Which kind of weather usually forms over the northwest united states in the summer because of maritime polar air masses? 1 )fog 2)dry heat 3) heavy snow 4) heavy rain