User: The greenhouse effect is a result of A. absorption and radiation of energy in the hydrosphere. B. consumption of fruits and vegetables that produce a biofuel. C. absorption and radiation of energy in the atmosphere.
A principal focus or focal point is a special focus: 1  For a lens, or a spherical or parabolic mirror, it is a point onto which collimated light parallel to the axis is focused. Since light can pass through a lens in either direction, a lens has two focal pointsâone on each side.
Focus: â..the concentration of attention or energy on somethingâ. Just like Stan the dog, focus is concentrating our attention or energy onto something â in his case, the cupcakes! We normally focus on what we do.If we are reading a book, we focus on reading it (and often ignoring our surroundings!).e can focus in what we are doing by focusing on God? How can the two relate to each other? Well you see, by focusing on God, you know exactly what God wants. This keeps you motivated (or should make you) in what you are doing because you know that you are doing it for God.