absorb

chemical

chemistry

contaminated

contamination

copper

damage

danger

dangerous

dead

desert

destruction

dirty

drought

dry

earth

ecological

ecology

emissions

environment

environmental

factory

field

fluid

garbage

global

ground

heavy

industrial

industry

land

liquid

metal

mine

nature

oil

old

poison

poisoning

polluted

polluting

pollution

protection

red

reflection

soil

toxic

waste

water

yard