ecosystem

생태계

an ecological community together with its environment, functioning as a unit

ozone layer

오존층

greenhouse

 effect

온실효과

photochemical

smog

광화학스모그

pollution

오염, 공해

the act or process of polluting or the state of being polluted

pollutant

오염물질

purification

정화

the act or an instance of cleansing or purifying

global warming

지구온난화

an increase in the average temperature of the earth’s atmosphere

food chain

먹이사슬

desertification

사막화

catalyst

촉매

catalysis

촉매작용

the action of a catalyst

endangered

species

멸종위기의 종

a species present in such small numbers that it is

at risk of extinction

acid rain

산성비

acid precipitation falling as rain

toxic

독성의

alternative

energy

대체에너지

reclamation

개간, 재생

the act or process of reclaiming

dump

버리다

release or throw down in a large mass

calamity

catastrophe

disaster

재난, 불행

abundance

풍부

countless

무수한

lush

푸릇푸릇한, 무성한

having or characterized by luxuriant vegetation