agriculture

animal

chimney

city

concept

danger

dangerous

dead

death

dirty

disaster

earth

ecological

ecology

electricity

emission

environment

facility

factory

grass

graze

grazing

health

horse

industry

landscape

livestock

meadow

mongolia

nature

nobody

pasture

plant

poison

pollute

polluted

pollution

power

problem

risk

smoke

symbol

technology

toxic

toxication

ulaanbaatar

unhealthy

vapor

view

waste