This is persuasive writing written with the persuasive technique technique of Logos, which is the use of persuasion to someone's logical reasoning and using supportive facts to back it up. All the the facts presented here about the testing they do and filtering process used appeals to one's logical reasoning. That said, reading through the answers, the author's motivation is to sell the water, so the facts must speak to its credibility. Therefore, we know this is not a consumer, we know there is a motive to sell, so D is the best answer.
It seems that Anna is forced to grow up because of the context she is leaving in. She might not fully understand what is going on in depth however, she knows that something is wrong, that she might be scared and enjoy life day by day. It is not possible to see her with nowadays eyes, because of the social context and the situations she might have to deal with. She might be quite aware of her role within her family and people around her.
Up is the preposition used here. Prepositions state where something is.
Answer:
Mars' surface cannot support life as we know it. ... Mars is known as the Red Planet because iron minerals in the Martian soil
Explanation: