Similar to SimilarG 5

I combined two Humans.

Combination for human:

earth + fire = lava
air + fire = energy
lava + air = stone
water + stone = sand
water + earth = swamp
swamp + sand = clay
swamp + energy = life
clay + life = golem
golem + life = human

Similar to Similar G5:
Similar elements reacted

There are multiple elements that can be combined with themselves, but I believe the earliest one is Stone + Stone = Fire + Stone + Stone

Or you can use Human + Human = Sex

Other elements that can be combined with themselves:

Tree + Tree = Seeds
Water + Water = Sea
Radiowave + Radiowave = Radiation
Computer + Computer = Internet

ENJOY!!!