How does a pH indicator enable one to determine if fermentation has occurred

Any sound above what db can cause hearing loss in human beings

How have high taxes on tobacco products impacted the number of people who use them? a. the number of tobacco users has increased. b. the number of tobacco users has decreased. c. the number of tobacco users has not changed. d. the number of adolescent tobacco users decreased, while the number of adult users increased

Hemoglobin is a proton that carries oxygen around your body what is hemoglobin made from