instruction:
In this task, you are given a sentence in Spanish and your task is to translate it into English. In translation, keep the numbers and capitalization (capitalize only the first word of each sentence and name).
question:
Todavía no se ha descubierto el grado de contaminación cero de ninguna actividad humana.
answer:
In no field of human activity have we ever discovered a zero degree of pollution.


question:
¿Es necesario recordar que la eficacia de un gasto no se mide por el volumen de los créditos asignados al proyecto?
answer:
We should remember that the effectiveness of expenditure is not measured by the volume of funding allocated to the project.


question:
Se hizo un minucioso estudio de las consecuencias medioambientales.
answer:

An in-depth environmental impact assessment had been carried out.