These factors have contributed to desertification.

farming
flooding
OMVS
overgrazing
population growth

What is associated with mid-ocean ridges?

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.

Why is oman trying to develop its tourism and manufacturing sectors?