Answer:
When authors develop central ideas they add supporting details in the text that allow the reader to find the central idea. These details act as evidence for the central idea.
Explanation:
Answer: “who motivates (a) people”
rewrite this as “who motivated people”
Explanation:
It’s a simple grammatical error
The third one because the statement is mostly an opinion. Hope this helps.
b. garden
A preposition is found in a sentence in which it introduces information to the reader like a location perhaps. The object of the preposition can be a noun, a pronoun or even a gerund that is usually together with the preposition in order to complete a prepositional phrase. In the statement above, the prepositional phrase is "on the garden", therefore the preposition is "on" and the object of the preposition is the "garden" to which the preposition "on" refers to.