What was the putnam bill?

Which of the following was a similarity between classical mesoamerican and south american civilizations ?

Which of these actions were taken by the us government to get ready for war? check all that apply. using a draft to build armed forces planting victory gardens for food and to boost morale promoting conservation of key products trying to get people to buy liberty bonds taking new jobs to meet demands promoting patriotism

In general which explains why communist revolutions did not happen