Ecology<br/>Picture dictionary

Ecology
Picture dictionary

Ecology<br/>Picture dictionary

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animal

plant

river

sea

sun

rain

wind

tree

balance

coal

waste

oil

paper

wood

ocean

oxygen

desert

planet

United Nations

vent

lake

United Nations Educational Scientific and Cultural Organization

population

density

accident

ash

avalanche

ground

glacier

shrub

coral

lichen

chlorophyll

atmosphere

pollution

brook

biosphere

iceberg

poisonous

butane

lumber

pesticide

bacteria

colony

compost

toxic

stream

radioactive

volcanic eruption

crash

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