燃やす
ash
background
bamboo
black
block
branch
carbon
charcoal
closeup
coal
combustion
cooking
dark
dirty
emission
energy
environment
fire
fossil
fuel
handful
hard
hardwood
heat
high
industry
isolated
material
mine
mineral
natural
object
piece
pile
power
pure
purity
quality
raw
resource
rock
smoke
stick
stone
studio
traditional
trunk
white
wood