Use of ground troops: Americanization used US ground troops to fight the war whereas Vietnamization used S.Vietnamese ground troops to fight the war.
Johnson moved the US from an aid and financial backer to a ground force with men in active duty on the front lines in addition to naval and air support. Nixon's policy removed the ground troops, leaving the S. Vietnamese to fight that on their own (with our aid and money) but continued our air strikes and naval support.
D the study of human origins
It was electricity that was being invented causing the extended number of hours in a day permitting Americans to work and even play. Electricity powers companies, industries, manufacturing plants down to the most basic unit, the homes, schools, appliances, gadgets and the likes. It was said that electricity has been invented by an American inventor named as Thomas Alba Edison however, there are a lot of arguments saying that it was not Edison who first discovered electricity. The electricity has become a vital part of the lives and business of all the people in the world.
The one that does not accurately describe Mesopotamia is : D. it has remains of the Great ice sheets
Mesopotamia is where the first western civilization began (which eliminate option C) and is well known for it's agricultural technique and a place where wheat and lentils first found (which eliminate option A and B)
The navigator who wanted to reach Asia by sailing west from Europe was "Christopher Columbus," since it was unknown at this time that the land that would soon be known as the New World lay in the way.