Sphere interactions are driven by two sources of energy. The EXTERNAL source of energy comes from what?

From the Sun

Explanation:

Solar power is energy turned by the sun into thermal or electricity. The cleanest and most generous source of usable green energy is solar energy.

Solar energy, Solar radiation capable of heat creation, chemical reactions or power generation. The cumulative number of solar energy events on earth significantly exceeds existing and planned energy needs worldwide.

an organism's phenotype is the  form of a trait  that it  displays. for  flowercolor, a pea  plant  can  display  a phenotype of purple or white flowers. an organism's  genotype  is the alleles of a gene it contains. based on his data, mendel concluded that a phenotype can be  determined  by more than one  genotype.