Man has invented four kinds of satellites. The first kind of satellites studies the1of the earth. They are used to make maps. They also help countries to see where they can2oil or gold.
The second kind of satellites is used to3ships and planes. A ship or a plane can send a message to the satellite and can find out4it is.
The third kind of satellites studies the weather. These satellites5clouds and strong winds moving across the earth. They warn countries to make preparations when very6weather is coming. They7of the earth from thousands of miles above it and send the photos to weather stations on the ground.
8kind is used for communication. Telephone calls9countries can be sent by these satellites. Some can carry hundreds of calls at one time. The call is sent to the satellite then the10sends it to a station in the country and this country is being phoned. These satellites also carry pictures; they can receive and send about eight programs at a time.
