<span>There wasn't many vaccinations back in the day and medicine slowly developed through years passing by. Also eras such as the Black plague and others really helped develop medicines and vaccinations moving forward for people to use.
Hope this helps.</span><span />
Answer:
frequent rain ans is 4 no
many lake ans is 3 no
frequent earthquake ans is 2 no
and scarce food ans is no 1
I think so
Great Wall of China i really hope this help you.
The answer is Africa border the Persian Gulf. This is not true and actually Africa borders Africa the Atlantic Ocean, the Indian Ocean, the Mediterranean Sea, and the Red Sea.
