Solar Radiation and Energy

Plants typically utilize only about 1% of the total solar radiation reaching their leaves for photosynthesis. Most energy is either reflected, transmitted, or lost as heat. This low efficiency explains why plants need large surface areas to capture sufficient energy.

The Sun is the ultimate source of virtually all energy on Earth, powering photosynthesis in plants. This energy then flows through ecosystems via food chains. Plants and animals depend on solar energy.

This is the correct answer. The entire process of manufacturing of solar cells is quite expensive.

Insolation is the radiant energy that reaches the surface of the earth from the sun.

Though plants act as a source of energy for all the heterotrophs, but even plants depend upon the energy of sun for the formation of their food. Therefore, sun is said to be the ultimate source of energy.

Plants prepare their food by using energy from the sun. Thus, solar energy is the correct option.

The first sentence uses 'radiations' (plural noun) for UV rays. The second needs 'radiating' (present participle as adjective) to describe spreading pain. The third uses 'radiates' (present tense verb) for what the sun does.

Sun is the source of almost all energy on the Earth.

Photovoltaics are the best known method for generating electric power by using solar cells to convert energy from the sun into a flow of electrons. The photovoltaic effect refers to photons of light exciting electrons into a higher state of energy, allowing them to act as charge carriers for an electric current. Photovoltaic power capacity is measured as maximum power output under standardized test conditions (STC) in Wp (Watts peak).

The sun's energy is the primary source of energy for all surface phenomena and life on Earth. Combined with the material of the Earth, this energy provides for the immense diversity of life forms that are found on the Earth.

 Matter in the core region of the sun is in plasma state.

The friction due to the atmosphere heats them up and they glow.

The Sun is the primary source of heat and light for Earth and the entire solar system. While other stars also produce heat through nuclear fusion, they are extremely distant and their contribution to Earth's heat budget is negligible compared to the Sun. The Moon, Earth, and Pluto do not generate significant internal heat - they primarily reflect or absorb the Sun's radiation.

The sun (sunlight), soil, air, rocks and water sources are all non-living things in an ecosystem.