Answer:
Poisonous gases blistered soldiers' skin, eyes, and lungs.
Explanation:
C. Acueducts.
I'm sure that's it, good luck ;)
Cyclic movement involves short trips in which the person moving comes back home eventually, while migration is long term.
Answer:
Over the centuries, the Great Wall has been built and rebuilt for three main purposes: as kingdom border defenses, to defend China's northern border, and for tourism.
Explanation:
