you need the hyphen only if the two words are functioning together as an adjective before the the noun they're describing.
Answer:
autobiography - comes directly from the person themself
Answer:
A
Explanation:
unhygienic conditions contribute to diseases and outbreaks of disease example diarrhea and skin infect6 diseases
Answer:
The purpose is to highlight the importance of what he is going to say.
Explanation:
When the author uses repetition to say "… let us be very clear, and make very clear to all the world what our motives and our objects are," he is drawing the attention of listeners and readers and highlighting the importance of what he is going to speak. This makes the public pay close attention to his words, as these words will have a strong impact and must be very well understood and kept, as they present something essential and important.
