Construction and Demolition.
Water pollution is the presence of harmful materials in water, such as sewage, dissolved metal, waste from farms, factories and crude oil spilled from oil tankers.
Solar energy and wind energy give people clean ways to power their homes.
Air pollution is a mixture of solid particles and gases in the air. Car emissions, chemicals from factories, dust, pollen and mold spores may be suspended as particles.
The Burning of Fossil Fuels
(a)-4; (b)-2,3; (c)-1,5
nitrates from fertilizers, sewage and detergents.
Pollution is when harmful substances are added to the environment and then change it in a bad way.
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