What are header and footer in the page of ms word?

According to the law of supply,suppliers want to sell their product at prices

These two countries developed a strong trading relationship during the time of the renaissance. name them?

How might the distribution of oil affect the development of the united arab emirates? a) the abundance of oil has produced greater economic output.b) the lack of oil has resulted in a lower standard of living.c) although the united arab emirates has oil, it has not impacted the economic development.d) a lack of oil has little impact on the economic development of the united arab emirates.