You need sky plus a chariot to make sun. To make sky you use air plus cloud, and to make a chariot you use a warrior plus a cart. I'll leave the rest to you to figure out.
sun+rain
sea+sun
sun and rain.
With sun and plant
rain + sun
sea+sun
fire + sky
Sun + Metal = Gold
Water+Earth=Mud Mud+Fire=Sun
Water+Earth=Mud Mud+Fire=Sun
tree+farmer sun+tree
metal + human = tool tool + sun = solar cell sun + solar cell = electricity