War, viruses, less population, High crime rate , toxic air
A virus is a small infectious agent that replicates only inside the living cells of other organisms. Viruses can infect all types of life forms, from animals and plants to microorganisms, including bacteria and archaea.
I dont know just need pts
Answer: i think its cancer
Explanation:
eating healthy food can prevent some cancer but not all.
The material found in the digestive system that aids in digestion and also kills pathogens would be "stomach acids", specifically hydrochloric acid.