Before the Catholic Church was exposed for its corruption by Martin Luther, scholars depended on the Church itself to provide them with answers about the world. However, once the church had been exposed for their hypocrisy and lies, what did Scholars begin to do?

Scholars began to question the Church authority.

Explanation:

The Catholic Church in the 14th and 15th centuries faced many problems because of the failure of the Papal authority to provide spiritual leadership. The religious sensibility of the people had heightened with wars, diseases, epidemics, and crop failures. The Church also faced criticism of its institutional degeneration and corruption.

Individual attempts for reforms were made by John Wycliffe in England and Jon Hus in Bohemia. But they were crushed and declared heretics.

productive most commonly means: achieving or producing a significant amount or result.

explanation:

productive can also mean:

these depend on how the word productive is used. most likely productive will mean   achieving or producing a significant amount or result.

answer; lead-based paint;