Earth observation refers to the collection and analysis of data about the Earth's physical, chemical, and biological systems. This is often done using satellites, drones, and other remote sensing technologies that capture images and measurements from space or the atmosphere. The information gathered helps scientists monitor changes in the environment, such as deforestation, urban development, and climate change. The data obtained through earth observation is crucial for various applications, including agriculture, disaster management, and urban planning. By understanding how the Earth is changing, governments and organizations can make informed decisions to protect natural resources and improve the quality of life for people around the world.