Greenhouse gases
Global warming
Acid rain
Industrial waste
Ozone layer
fossil fuels
Aerosol sprays
Greenhouse gases warm our planet
Global warming is a real issue
Acid rain ruined our crops
There is a lot of industrial waste coming from that factory
The Ozone layer protects the Earth from harmful ultraviolet rays from the Sun.
Fossil fuels are made from decomposing plants and animals.
Many aerosol sprays contain highly toxic chemicals
