Answer: The Europeans carried a hidden enemy to the Indians. (diseases)
Explanation: The Native people of America had no immune support for the diseases that the European explorers and well as the colonist brought to them. Diseases such as smallpox, influenza, measles, and chickenpox was very deadly to American Indians.
only in so far as many areas under control of the Islamic Empires had once been Roman province such as North Africa and much of the Upper Middle East
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:
manu's father is 24 years younger than manu's grandfather and 30 years older than him. The sum of ages of all the three persons is 144 years. find the age of each of him.
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