Air pollution is a type of environmental pollution that affects the air and is usually caused by smoke or other harmful gases, mainly oxides of carbon, sulphur and nitrogen. In other words, air pollution is the contamination of air due to the presence or introduction of a substance which has a poisonous effect.
Air pollution can also cause long-term damage to people's nerves, brain, kidneys, liver, and other organs.
Answer:
which one is it 9 42 or 12?
B. CO2 levels in the atmosphere could increase and contribute to global warming problems.
1/4 if by express you mean in the genotype
1/2 if by express you mean in the phenotype
