Final answer:
Humans modify the environment to meet their needs and improve their quality of life.
Step-by-step explanation:
The main reason why humans modify the environment is to meet their needs and improve their quality of life. Humans have modified the environment throughout history to obtain resources such as food, water, and shelter. Additionally, humans modify the environment to create infrastructure and amenities that enhance their living conditions, such as building homes, roads, and cities.
Learn more about Human impact on the environment