Answer:
no water
no food
no oxygen
Explanation:
I was gonna say someone but I must stay as a friendly neighbor
The Bering land bridge is a theory of how early humans migrated to the Americas from Asia about 20,000 years ago.
Answer:
C. Trench warfare
Explanation:
A's incorrect as alliances have existed for thousands of years
B's incorrect as an infantry charge's greatest weakness is the machine gun for obvious reasons
D's incorrect as both sides had machine guns, and was not the reason for victory.
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This leaves C, which makes sense as troops would be forced to hide on lower ground due to the deadliness of machine guns