The incoming solar energy that reaches the planet is insolation.
The top layer of the atmosphere, on the other hand, absorbs some of the heat from the rays of the sun as these rays pass through it.
Terrestrial radiation is the radiation that comes from the earth.
Final Answer:
Insolation vs. Terrestrial Radiation: Our sun provides most of our energy and heat. It supplies solar energy or fuel for weather and climatic processes. Solar radiation refers to the energy emitted by the sun, whereas insolation refers to the amount of solar energy that reaches the planet.
The top layer of the atmosphere, on the other hand, absorbs some of the heat from the rays of the sun as these rays pass through it. Terrestrial radiation is the radiation that comes from the earth.