What is the difference between intensive farming and extensive farming?

What is the primary justification of the hypothesis that the early earth environment was void of oxygen? ( 2 points) data showing the concentrations of gases extracted from rocks fossil evidence regarding the origin of eukaryotes generally accepted atmospheric conditions molecular evidence based on evolutionary traits.

What weather system might be occurring if the pressure gradient decreases and fish harvests in peru are weaker than normal

The process by which liquid water changes into water vapour is called what ?