Rank these gases in the atmosphere from most abundant to least abundant: oxygen, nitrogen, argon, carbon dixoide.
a. oxygen, carbon dioxide, nitrogen, argon
b. nitrogen, oxygen, argon, carbon dioxide
c. nitrogen, carbon dioxide, oxygen, argon
d. carbon dioxide, argon, nitrogen, oxygen

Asystematic approach to problem solving is called a (an)

Suppose a wheel with a tire mounted on it is rotating at the constant rate of 2.15 times a second. a tack is stuck in the tire at a distance of 0.373 m from the rotation axis. noting that for every rotation the tack travels one circumference (a) find the tack's tangential speed. (b) what is the tacks radial acceleration?

Which is not true of the intertropical convergence zone? a) it features heavy precipitation b) it's where the trade winds collidec) it's a high-pressure zone with sinking air d) it is also known as the doldrums