tractor

pollution

landfill

junk

waste

rubbish

dump

garbage

environment

trash

recycling

machine

loader

refuse

scoop

heap

pile

ecology

loading

bucket

plant

disposal

bulldozer

contamination

bunch

dirt

bionomics

dozer

factory

works

hill

pack

plastics

household

conversion

sorting

mountain

truck

industrial

shovel

handling

unsorted

processing

facility

rake

treatment

dirty