Sentence examples for justifiable usage from inspiring English sources

The concentration of SiO2 nanoparticles for effective and justifiable usage should be carefully selected.

Is this a justifiable use of money?

By turning the lights off more frequently, unnecessary energy usage can be avoided for a moderate, but justifiable, impact on the subjective experience.

Accordingly the usage of "social concepts" in most of the definitions is justifiable.

Justifiable pleasure?

Justifiable favourites?

Or at least justifiable.

Is that justifiable?

Is is justifiable?

Was his research justifiable?

Is this justifiable?