He somewhat did. He absorbed the powers of a tree, something belonging to earth. And his energy blasts were all shockwave or wide hitting. The fact they were orange instead of black or something related to black is further proof.
I guess so, but I thought he was able to absorb from the Genesis Tree because the Sim-Seru started out as a Ra-seru. But the fact that they were orange is definitely a relation to earth. The reason I thought it was Jedo is because of his appearance in West Voz Forest after Songi is dead.