Why is Global warming occurring?

Plz quick a natural resource that is replaceable through a cycle in nature or sustainable practice is called a? the subject is science

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?

Below are the three main organs that make up the plant body