Rivalry between the french and british

Look at the overview of the seven years war. That will help. The rivalry started due to the conflict in Ohio valley in 1754

3. The conflict was increased by the fur trade and both claiming the Ohio River Valley. 

4. The French showed the Native Americans respect by learning about their culture, language and paying them for their labor and goods, but the British did not and even raised the prices of the good they sold to the natives. Also, the French showed more respect for the land, which was important to the Native Americans.