1) Explain the difference between a negative and a positive externality?

When was napoleon banopart born?

To safely control the traffic flow and protect workers near public roadways and moving construction equipment use you could use

How do refracting telescopes magnify a far away image? a. by directing light beams to meet at a focal point b. by absorbing light beams’ wavelengths c. by forcing light beams to change direction d. by measuring light beams’ velocity