Ecosystems vary in different parts of the world due to several factors such as climate, topography, soil composition, and human activities. For example, tropical rainforests are found near the equator and have high biodiversity, while deserts are characterized by low precipitation and sparse vegetation. Additionally, mountainous regions have distinct ecosystems based on altitude, with different plants and animals found at various elevations. Overall, the variation in ecosystems around the world is a result of the unique environmental conditions present in each region.
