Answer:
I think the structure is cause and effect. They choose to put the titles this way so the reader will have an idea about what they are reading. And lastly “Top Food Chain”
Answer: The word "invigorating" would leave the reader with a more positive impression about the coffee than the word "acidic."
Explanation:
The adjective "acidic", in this context, is used to describe a drink that has a sour taste. If a coffee is sour, it means that it is not prepared properly, or that the coffee prepared is of a low quality. On the other hand, word "invigorating" has a more positive connotation. If something is invigorating, it gives us strength and makes us full of energy. This is exactly what people usually expect from a coffee. Having this in mind, word "invigorating" would certainly leave a reader with a positive impression about the coffee and its smell.
I`m assuming the underlined word is dearth, so
the answer is a. shortage
