A chemical substance used to kill or slow the growth of certain plants
Concentration
A measure of the quantity of dissolved substance contained per unit volume of sollution
Thermal pollution
artificially raising the temperature
Pesticide
A chemical substance used to kill animal pests
Wastewater
water that has been used or contaminated by human activity; blackwater and greywater
Stormwater runoff
water, usually from precipitation, that runs off roofs, lawns, and paved areas
Desalination
The technology of removing salt and other minerals from water
Grey Water
water from bathing, cooking, and washing clothes
Contaminant
An undesirable substance in a mixture
Sewer System
a network of pipes that transport dirty or used water
Fertilizer
A substance used to provide nutrients to plants, usually for the purpose of increasing crop production
Blackwater
water from the toilet containing feces and urine
Bioremediation
the use of living things to remove contaminants from a polluted environment
Salinity
A measure of the quantity of dissolved salt in water
Watershed
an area surrounded by high land and drained by a river and its tributaries
Turbid
not clear; containing tiny specks of sediment or other solid matter
Created May 26, 2026
What are the best top numbers of all time? Rank them all with this top numbers of all time tier list maker. Drag your favorites into S tier and drop the worst into D tier. Share your top numbers of all time tier list on social media, compare rankings with friends, and see what other Americans think. The ultimate way to rank and debate top numbers of all time online. Popular categories include numbers, facts, trivia, mathematics.