Lol I feel ugly like really ugly

Witch layer of the atmosphere has the most air pressure

Identify, in detail, three environmental effects of agriculture and explain how the actions of farmers cause them. what is the relationship between poverty and obesity in america and why? what are genetically modified organisms? list two pros and two cons for using genetically modified organisms. y'all this is due !

During which era in earth's history were the first insects? mesozoic precambrian cenozoic paleozoic