Question

When McDonald's is built around the world, then does this mean it's a part of homogenization

Answer 1

Homogenization is a change such that something will be more unified, less varied, more "the same". When McDonald's are built around the world, it brings the same  logos, symbols, food, food culture and others around the world, making the world look more alike; so it is possible to find a place in India (McDonald's) that looks the same as some place in the US: this is a part of homogenization.