To complete a task in a short amount of time/get from A to B in the quickest amount of time
Hope helps!
You are infected by the streptococcus <em>bacterium</em>. You will suffer from a sore throat, as well as occasional rubus of the gastric musosa, unrtil you shake that thing. Shake it now, baby !
The correct answer is:
<span>The rate at which a waves energy flows through a given unit of area
In fact, light intensity is defined as the light power per unit of area:
</span>

<span>but the power is the energy carried by the light per unit of time:
</span>

<span>this means that the intensity can be rewritten as
</span>

<span>
So, it's basically the rate of energy (per unit of time) through a given surface.</span>