Answer:
Military communications have to be coded to keep them secret from the enemy. However the process of coding and decoding are time consuming processes. Furthermore the codes may be broken by the enemy. Nations have devoted considerable effort trying to create unbreakable codes. In World War II both Germany and Japan thought they had such unbreakable codes, but in fact these codes were broken and their most vital information were readily available to their enemies.
Explanation:
Answer:
Amendments can be proposed in Congress when two thirds of both the House and Senate agree. The states can play a role in proposing changes to the Constitution as well: two thirds of the state legislatures must call conventions to propose amendments.
Explanation:
Answer:
c. Osama Bin Laden
Explanation:
He was the one that plotted the entire thing.
The correct answer is Indus.
The Yellow River was an important part of Chinese civilization.
The Tigris River was an important part of the Mesopotamia civilization, located in modern day Iraq.
The Amazon River is located in South America, and was an important part of several different civilizations.
This shows that the only correct answer can be Indus River.
