The cost of producing one more item is a(n) external benefit marginal cost external cost internal cost marginal externality.

One of the brightest comets of the 20th century was comet hyakutake, which passed close to the sun in early 1996. the orbital period of this comet is estimated to be about 30,000 years. find the semi-major axis of this comet’s orbit. compare it to the average sun-pluto distance and to the distance to alpha centauri, the nearest star to the sun, which is 4.3 light-years distant.

The earth rotates on its axis and revolves around the sun every

Which of teh following would explain the importance of the trans-siberian railroad to russia's economy? (schoology test)