Answer:
stone age...
Explanation:
honestly just look it up online
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:
The answer is B) Islam was spread by many merchants
Explanation:
The Arab merchants and traders became the carriers of the new religion and they propagated it wherever they went. Muslim missionaries played an important part in the spread of Islam and some missionaries even assumed roles as merchants or traders.
The excerpt discusses fair trade rules and instructs merchant of fair business practice. Therefore, the only possible answer is that Islam was spread by many mechants.
D. When traffic signals are timed traffic seems to be less dense.
