Two firms, Boeing and Airbus, produce most large passenger airplanes. It costs billions of dollars to develop a new type of airplane. One airplane can cost more than $260 million. The competition between these two firms is fierce. Is this an example of perfect competition? Why or why not?

answer; william penn's approach made the colony diverse by attracting many types of people and religions;

radioactive dating, also known as  radioisotope dating  is a process that in  estimating the approximate  age  of  rocks. these data can be analyzed from  the studies dealing with the  decay of the radioactive elements that are present in these rocks. in nature, there are a few types of materials or atoms which are quite unstable and they spontaneously decay or breakdown to form other kinds of atoms.

c) many feel that their votes do not count eliminate