I think the answer is <span>A significant reduction in the population of the young occurs because they are more vulnerable to infectious diseases spread by unsanitary conditions.
In my opinion, unsanitary conditions are often man-made. For example, if a person does not clean his surroundings, this would cause bacterias from infecting the place. Then it affects the person living in that area, then spreads because through oral or sexual contacts.
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It a b and c hope it helps you
The model that describes how data is written to a blockchain is the: append-only data structure.
<h3>What is an Append-only Data Structure?</h3>
Append-only is computer data storage property whereby new data can be added to a blockchain, like an additional block, in a time-ordered sequential order in such a way that the data added cannot be easily altered as al data are permanently stored across all nodes.
The append-only data structure makes data stored almost immutable. This is the model in which the blockchain technology is built on.
Therefore, the model that describes how data is written to a blockchain is the: append-only data structure.
Learn more about append-only data structure on:
brainly.com/question/25558500
The answer is C. Mono refers to one while poly refers to multiple. Hope this helps :)
Is it birth certificates (if we are talking about America).
