The correct statements are # 2, 3, and 4.
The Second Continental Congress started in May of 1775. One of the biggest issues this Congress had to address was the organization of military forces against the British. Even though the revolution already started, the colonists were extremely unorganized. This Congress creates a coordinated colonial army and nominate George Washington to be the commander in chief of the army. Along with this, the Second Continental Congress approves of the Declaration of Independence, which symbolizes an official break away from British control.
The development of a farming culture among preColumbian Native American Indians helped ensure "<span>(4) a more stable food supply". This is true all around the world. </span>
It was the Federal Constitution of the United Mexican States of 1824. The Mexican Federal Constitution of 1824 was Mexico's first constitution, drafted after the overthrow of Emperor Agustín de Iturbide. The Constitution of 1824 transformed Mexico into a federal republic, governed by a national president, congress, and supreme court, but with lots of power also given to the states.
Source 1 is primary and source two is secondary. Primary comes directly from an individual of that time period, secondary comes from a historian