In terms of the first question, "They" would be an objective pronoun, but it should be noted that this does not have to be so. for the second, the answer is "my".
To make sure that the teacher can understand your paragraphs is what she means. Hope this helps! ;)
A. The beauty of nature, a delicious treat.
Because he compares nature with a treat.
Theme.
inanimate is when something does not move or is not animated, terrestrial is something from Earth, and ablution is when you wash yourself.