Answer: Things turn into geographical features of the Earth, such as the Himalayas, when the Eldest Magician blows on them. The author refers to the animals as "All-the-Elephant-there-was," "All-the-Beaver-there-was," and "All-the-Turtle-there-was."
Explanation: In the excerpt we can clearly see that it is a story about how the creation of the world, first because the Eldest Magician is creating mountains, Islands, deserts only with his breath, and also, he refers to the animals as "All the Elephant-there-was," "All-the-Beaver-there-was", etc, because they are the first animals ever created of each kind, so there was just one cow, one elephant, one beaver, etc.
D, because you can remove the part in parentheses and still have a gramatically correct and coherent sentence.
Remaining healthy in Elizabethan England was a challenge.
This is the central idea of the passage. We know this because it says, "there is no concept of 'health and safety'. Other details that reveal this as a central idea are "contemporary standards of cleanliness will worry you", "People die every day from unknown ailments", and "Infectious diseases periodically kill thousands". This all shows that remaining healthy in England was a challenge.
This is a physical description as it <em>fully depicts the place</em> that the character is passing by. For instance, he/she identifies meters ("about a hundred yards") and miles ("that was five miles wide".) He/she also describes the place: "a shallow lake," "full of rushes," "and ducks (...) in the season," "There was a slough or a creek leading out of it." This is a <em>setting</em> full <em>of physical details</em>.