Which is the best explanation for a convection current in the atmosphere? Hot air expands and rises to the top of the atmosphere, while the cool air stays
Hot air expands and rides becoming cooler and denser, then falling again in a
Cold air expands and rises, becoming warmer and contracting, then falling again
in a continuous cycle.
Cold light air rises in the atmosphere, while the warmer air stays near the
ground

you did not attach the discourse, but i assume it to be the discourse on the origin and basis of inequality among men (the original titile in french is: "discours sur l'origine et les fondements de l'inégalité parmi les hommes"), also know as "second discourse". in this discourse, jean-jacques rousseau emphasizes that private property is the basis of all inequalities.

therefore, what enabled the old regime to maintain as long as it did was private property.

desert perennials often survive by remaining dormant during dry periods of the year, then springing to life when water becomes available. most annual desert plants germinate only after heavy seasonal rain, then complete their reproductive cycle very quickly.