SOLAR SYSTEM

Detailed explanation-1: -Changes in the solar radiation level of a given environment may affect the photosynthetic appara-tus of plants. Lower solar radiation level reduces the photosynthetic rate and hence plant growth.

Detailed explanation-2: -The reduced energy from the Sun sets into motion a sequence of events on Earth beginning with a thinning of the stratospheric ozone layer. That thinning in turn changes the temperature structure of the stratosphere, which then changes the dynamics of the lower atmosphere, especially wind and weather patterns.

Detailed explanation-3: -The solar radiation, which reaches the earth’s surface, warms the surface. However, the earth’s average temperature does not change, because the earth in turn radiates energy to the atmosphere and to space. The outgoing radiation is at the earth’s temperature and has its maximum in the infrared region of the spectrum.

Detailed explanation-4: -Sunspots are regions on the Sun where the magnetic field is so strong that it blocks convective heat flow to the visible surface. As a result, sunspots are cooler than the surrounding “face” of the Sun. On their own, they make the Sun dimmer by reducing the Sun’s net radiative output.