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B2/C1 Environment 1

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Across
type of waste water that is produced from a community of people.
not preserved, improved, or altered by the use of a chemical, physical, or biological agent.
suffering or death caused by lack of food.
an event causing great and usually sudden damage or suffering; a disaster.
connected with the sea in relation to navigation, shipping, etc.
substance which is considered unpleasant or disgusting, typically because of its dirtiness.
activity or business of chopping down trees for commercial use.
Down
period of excessively hot weather, which may be accompanied by high humidity, especially in oceanic climate countries.
causing or capable of causing death or illness if taken into the body.
a very fine cloud in the air, typically caused by suspended particles.
termination of a group of organisms, normally a species.
deposit or dispose of (rubbish, waste, or unwanted material), typically in a careless or hurried way.
an area of low-lying, uncultivated ground where water collects; a bog or marsh.
convert waste materials into new materials and objects.
a source of energy derived immediately from living matter.
upper layer of earth in which plants grow.