True definitely but this may be subjective
John Snow is known as the father of epidemiology.
In this essay "On the Mode of Cholera" he used both reasoned argument along with documentary evidence to show that cholera spread from person to person.
He gave examples of rows of houses on opposite sides to each other, and how all of the members in one row contracted cholera, while only one person on the opposite row contracted the disease.
Hope this help
<span> It is believed that the first Dutch settlers came to South Africa in 1652. These settlers founded the city of Cape Town and over time developed a unique culture, language, and society, helping to form a unified Afrikaner population. Afrikaners, also formerly known as Boers, historically have been defined as those Afrikaans language-speakers of European especially Dutch descent who have inhabited Southern Africa since the 17th century.
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Resiliency is the ability to withstand difficulties, so the answer is:
the ability of an ecosystem to recover from damage
The purpose of the author is to save the reefs! so:
to convince readers that practices that destroy coral reefs must be stopped
And the phrases that support safety are: more vitamin A (a crop was changed genetically to have more), "you can see" and "could help save" - those are part of the bigger argument
and finally, also unsubstantiated risks - this shows that there is no proof for the risks and "more nutritious"- it supports the value of the modified food