A small pile of dark grey, irregularly shaped rocks, possibly coal, rests on a black background, showcasing their rough textures and varied sizes
Schlüsselwörter
rock,
coal,
dark,
grey,
black,
pile,
heap,
stone,
rough,
texture,
irregular,
shape,
size,
background,
energy,
fuel,
mineral,
resource,
power,
combustion,
industry,
mining,
fossil,
element,
earth,
ground,
nature,
material,
substance,
solid,
hard,
lump,
massa,
aggregate,
geology,
science,
environment,
pollution,
carbon,
climate,
change,
global,
warming,
impact,
effect,
problem,
solution,
sustainability,
source
Deutsch
