Air pollution that hangs over cities and reduces visibility.
smog
A pollutant that is put directly into the air by human activity.
primary pollutant
Air that come from car engines
carbon dioxide
A measure of how acidic or basic a substance is.
pH
the act of poisoning/polluting the environment
contamination
Yellow tree sperm that is all over the place right now or what many flowers have.
Pollen
This is the pH of pure water.
7.0
Air pollution can come from a specific type of building
Industries or/and factories
A sudden influx of acidic water that changes the water's pH.
acid shock
something that pollutes the air
pollutant
These form when primary pollutants react with other primary pollutants or with naturally occurring substances. Ozone is an example.
secondary pollutants
Can acid rain damage paint?
yes
hazardous substances released into the environment
toxins