Answer:
The water quality is deteriorated as there is depletion in Oxygen O₂.
Yes, the activity of the yeast has precluded the usage of the water
Explanation:
Here, we note that the addition of more or fewer drops of Reagent D sodium hydroxide (NaOH) is required to get the same blue color as in Phase 1 where no yeast is added indicates the level of O₂ in the water as the amount of O₂ concentration in the solution is directly proportional to the amount of Reagent D required to reach blue, meaning the O₂ is depleted.
When less sodium hydroxide is required to turn blue we have depleted sodium hydroxide in the solution that is the yeast added in Phases 2 or 3 of the experiment, consume O₂
Eutrophication is the enrichment of a body of water with nutrients that results in a change in the ecosystem such as: algae production, oxygen depletion and other results that diminishes the water usage.
Answer: 25%
Explanation: Smartphones are certainly an inevitable part of the everyday life of the modern technological age. It is almost impossible to imagine a day-to-day life without the use of smartphones for a variety of purposes, from using a variety of applications through common calls, etc. The said age range of 18-44 years, which means from teens to middle-aged people, where as many as 25%, which is a quarter of this age population, do not remember when they left the phone for five minutes. Probably nothing terrible would happen in those five minutes, but that speaks to how widespread the use of smartphones is. Teens are known to use it for a variety of applications for different needs, while these phones can also serve the business of middle-aged people. This phenomenon may be a matter of prestige and perhaps a matter of need and habit, but it is a familiar cliché that these 25% do not want to leave their phones even for five minutes.
One it might effect the economy
