21. In 1964, the Olympic Games in Tokyo became the first program (transmit) via satellite.
22. (atmosphere) pressure is the weight of all that air against the surface of the earth.
23. People are able to shop from their homes, and do their (bank) without leaving the house.
22. (atmosphere) pressure is the weight of all that air against the surface of the earth.
23. People are able to shop from their homes, and do their (bank) without leaving the house.