Ablank is a prediction about the outcome of a test or experiment

A hypothesis is a prediction about the outcome of a test or experiment.

Explanation:

A hypothesis is a provisional formulation, with intentions to be subsequently demonstrated or verified, constituting an admissible assumption.

It is the evolution of intuition to theory that will lead to practice, to test the hypotheses established by the deductive reasoning.

The first hypotheses are not always definitive and these, when firm, are not always ideal, even if they satisfy momentary conditions.

d. air pressure decreases as altitude increases.

answer(20) psi;