How does the section titled "A World of Challenges" develop the author's claims about the Cybathlon?

How can you tell that the text is from a biography

Identify the following sentence as simple, compound, complex, or compound-complex. even though most people think of africa as a desert, zimbabwe has a hot, tropical climate, so mangoes, passion fruit, pineapples, and avocados grow well there. a. compound b. simple c. complex d. compound-complex

In charlotte web, what compliment did charlotte pay to wilbur