How are two ecozones always driffrent from each other?

Two ecozones are always different from each other due to variations in climate, topography, and the types of plants and animals that are found in each region. These factors contribute to distinct ecosystems with unique characteristics and biodiversity levels, leading to differences in overall ecosystem function and resilience. Additionally, human impact, such as land use practices and pollution, can also further differentiate ecozones from each other.