(Question)
If microorganisms can cause dead tissue, then dead tissue can be caused by what? Answer choices: - disease - pollen counts - advanced mathematics - microorganisms - migrating birds - viruses - Physical weathering - harmful substances
(Answer)
microorganisms

(Question)
If infection can cause inflammation, then _can cause inflammation? Answer choices: - temperature - pathogens - steroids - arteries - dilation - Infection - disease - symptoms
(Answer)
Infection

(Question)
If treating H2O is used to remove harmful substances before drinking, then why do we generally treat H2O? Answer choices: - to add water to crops - hydration - vaporization - to water the garden - to drink it - looseness - to track it - evaporation
(Answer)
to drink it