How did imperialism lead to increased tension and stronger alliances?

Imperialism led to increased rivalry and tensions over prime colonies. several imperial questions on sphere of influence were not settled. The more colonies a country had the more the sense of national prestige and thus imperialist powers went a long way to acquire as many colonies as possible. questions of expansionism and the immediate threats of opponents led to the alliances that were witnessed in Europe prior ww1.

Idon’t know this answer but you can ask google i bet the answer is on there