it is called an Air pollutant
nature, natural substances
pollen
i don't know .it could be ,or maybe no
They are fuels that are natural substances and are found in the earth from the remains from dead plants and animals
Scientists think that human burning of fossil fuels (coal, oil and natural gas) in industry, transport and the generation of electricity (which releases carbon dioxide (CO2)), is causing the atmospheric temperature rise.
unhealthy diet
unhealthy diet
nitrogen
The atmospheric ozone is broken down by natural as well as man made processes. Natural by UV rays and man made by CFC's.
Not natural salt with essential nutrients in it, but regular white processed table salt is unhealthy.
Antitumor antibiotics are made from natural substances such as fungi in the soil. They interfere with important cell functions, including production of DNA and cell proteins. Doxorubicin and bleomycin belong to this group of chemotherapy drugs.
Natural Substances are those which are prepared from herbs and minerals, not from chemical or synthetic sources.
atmospheric and geological
An unhealthy diet is not an example of a natural hazard.
An unhealthy diet, because it stems from the varying behavior of humans and is not natural to all humans.
Natural
a plant.