Answer:
u have to find the circumference diameter and radius of the two balls
Explanation:
I think it is answer choice D.
Solar radiation is the fundamental energy driving our climate system, and nearly all climatic and biologic processes on Earth are dependent on solar input. Energy from the sun is essential for many processes on Earth including warming of the surface, evaporation, photosynthesis and atmospheric circulation.
Ecological Pyramid
The pyramid of ecology represents the dry weight or the organic matter in the species in each trophic level.