Ecology & Environment

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A place where large amounts if waste material are (usually) buried
The Technical term for growing plants on several levels usually on buildings. (two words)
The process of cutting trees (usually on a large scale) to make room for farmland/grassland or constructionss
Every cloud has a silver ...(proverb)
too much of sth. (noun)
The population ??? shows how many people live in a given space /country.
A developed or ???? country
If resources decrease over time they are ???
A gas e.g. breathed out by people and animals (two words).
Moving in the same direction as the hands of the clock.