There are many uses or artificial satellites. In communication field, they are used for telecommunication, TV transmitter, radio networks, and internet. In educational field, they are used for teleconferencing and nationwide classrooms. In weather forecasting, artificial satellites are used to get reports about monsoon, cyclones, changes of climate, etc. In oceanography, they are used to learn aquatic life and submarine changes.
Besides, artificial satellites are also useful in geological survey, in which they give information about water and mineral resources, and about Earth’s crust. They are also useful in agriculture to predict the yield of the crop and to detect crop disease. Meanwhile, in defense, satellites can watch the enemy country.