Answer:
Explanation:
Diagnosis - A disease must be diagnose this can be done by group of expertise. They diagnose one to two persons with the disease asking them questions about their state of health, how they were expose to the illness. This enable them have enough evidence as regarding the disease.
Signs and symptoms - signs are traces to a disease it is determined by an experts while the symptoms are the abnormalities or changes that indicate the disease.
Answer:
Researchers estimate global economic losses from fossil fuel air pollution at $2.9 trillion each year, or approximately 3.3 percent of global GDP.
It can affect the environment a little because it is explaining what it can do over the time when the evolution grows
Hope this helps :)
