environment

waste water and excrement conveyed in sewers

having or showing extensive knowledge, spiritual insight, and a lack of prejudice or ignorance

кислотный дождь

weed killer

killing insects

the complete, permanent disappearance of a species from Earth

able to be maintained at a certain rate or level.

having an obstinately uncooperative attitude, especially towards authority or discipline

(of something regarded as unpleasant) continuing without pause or interruption

ask for or try to obtain (something) from someone;

approach and address (someone) boldly or aggressively