Which is true about enzymes?
question 10 options:

they act on nonspecific, randomly chosen substrates.

after a reaction, they cannot be reused.

they can speed up metabolic processes in the body.

they cannot change shape.

do not guess i really need to get this right! < 3

They can speed up metabolic processes in the body

Explanation:

Enzymes are specific in action

They are protein in nature

air, water, heat and noise pollution can all be caused by producing and using technology. consuming resources - non-renewable resources, including precious metals like gold, are used to make technology

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.