1- Emigration and immigration rate
2- Death rate and birth rate
These factors determine and affect the number of organisms of a species in a particular community. Hope this helps!
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:
Contact the Centers for Disease Control and Prevention (CDC).
Explanation:
