Which one of the following are humans contributing to the carbon cycle? Choose all that apply collecting rooks
driving cars
using electricity
using cement for a patio

In the experiment you asked to react hydrochloric acid and with sodium hydroxide. when measuring the volume of the reactants, which instrument would give the greatest precision.

If c + di is a point on the circle, then | c + di |=

An electron moved from a lower energy level to a higher energy level. what most likely happened during the transition? a random amount of light was released. a fixed amount of energy was absorbed. a fixed amount of energy was released. a random amount of light was absorbed.