Where is desertification likely to occur a. the east coast of america b. alaska c. north africa d. europe and where is desertification not likely to occur a. the east coast of america b. california c. north africa d. central asia

In general, characteristics that an organism survive and reproduce become more common in a population over time. what mechanism of evolution cause this change?

The most effective way to provide children with safety messages is to

On a spring day, a middle-latitude city (about 40? north latitude) has a surface (sea-level) temperature of 10 ? c. if vertical soundings reveal a nearly constant environmental lapse rate of 6.5 ? c per kilometer and a temperature at the tropopause of –55 ? c, what is the height of the tropopause?