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.
The focus of intervention is on the strengths and aspirations of the people we work with. Saleebeyâs last point just quoted, points to the principle that in strengths-based approaches the focus is on the strengths and aspirations of the people we worth with and their environments.