Answer:
a) sensitivity analysis
Explanation:
Sensitivity analysis seeks to determine the effect of a variation of a particular item on its total value. That is, in the sensitivity analysis, several different variables are tested to understand the effect that each produces at the end of the process.
Answer: I think it is A, constitution
Answer:
Empedocles
Explanation:
He is the person who thought that matter is made up of fire, water, air, and earth.
Pharse took root:In everyday speech, a phrase may be any group of words, or even a single word, often carrying a special idiomatic meaning; in this sense it is roughly synonymous with expression. In linguistic analysis, a phrase is a group of words (or possibly a single word) that functions as a constituent in the syntax of a sentence – a single unit within a grammatical hierarchy. A phrase appears within a clause, although it is also possible for a phrase to be a clause or to contain a clause within it.
It is the concrete operational stage as far as I know.