Teen's needs to "belong." A passage rite from teenager to adulthood. Desire to share interests, even if those interests are viewed negatively. To feel popular, "cool", or "in" -- even if the group is viewed as not popular. Needs to separate and differentiate from parents. Rebellion, revolt against adults. For a reaction from adults. Low self esteem.
Innovations in farming techniques that led to great productivity.
1.- <em>Three Point Linkage</em>. Developed by Harry Ferguson, this invention raised or lowered the plough, depending on the depth farmers wanted to dig.
2.- <em>Genetical Modified Corps</em>. Scientist isolate genes with some desirable traits to improve the quality of the plant.
3.- <em>Fertiliser Deep Placement.</em> A new form of fertiliser that increased the Yields.
4.- <em>New Feeding Methods</em>. Blending different components of food to improve the quality of nutrition.
B. Women replaced men as workers in factories.
delegates in Philadelphia to write a new constitution
