If a vehicle with four wheels is traveling in a linear pathway through soft dirt, how many and which tires would you expect to leave tire track impressions?

aquifers are bounded above and below by impermeable rock. the driving force of groundwater movement in confined aquifers is pressure, rather than gravity.

the formula mass of a molecule or a compound is the sum of the atomic weights of the atoms in its empirical formula

(that's what i know about formula mass)

answersilicon (si); oxygen (o);