The largest european city which is not actually the capital of a country is:

The point where two air masses meet is called a

Describe at least three examples of how people and wildlife have adapted to their environments in the middle east.

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.