Singular- "earth's" is singular because its showing ownership
plural- "features" is plural because its saying that there is more than one feature of the earth
The situation in which summarizing would be most useful is when creating a synopsis of a play. A synopsis is a brief summary or an outline of a book, play or movie. It often includes the general and the main points, focusing more on how the characters progress or developed across the story.
I can’t really see that sorry
I strongly agree with I strongly agree with MCCCHUK