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.
Basic Focus. The basic focus of a company with a production orientation is toward maximizing production output. Under a production orientation, a company is succeeding when it is manufacturing as many products as possible at the cheapest possible price. In contrast, a company with a marketing orientation is squarely focused on the consumer.