What effect did the treaty of tordesillas have on europe and exploration ?

the treaty gave most of the western hemisphere to spain.
the pope was no longer the supreme religious and political authority in europe.
european nations stopped looking for new western routes to india.
spain colonized the entire western hemisphere, preventing other nations from doing so.
sailors could no longer sail west without the consent of the spanish ruler.

The correct answer is - The treaty gave most of the Western Hemisphere to Spain.

The Treaty of Tordesillas was a treaty conducted between the Crown of Castille (Spanish Empire), and the Portuguese Empire, where as a mediator came out the pope, in order to not allow conflict between the two countries and make it all fair and square. With this treaty, the demarcation line fell about 370 leagues west of the coast of Cape Verde, and the Portuguese got all territories on the east of it, while the Spanish got all territories on the west of it, thus giving the Spanish both North and South America in a way.