Which structure is also called the windpipe?

"your temperature analysis reveals a pattern with coldest temperatures located to the portion of the map."

When fossil fuels are burned, carbon dioxide is released. how does this gas impact the environment?

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?