Орал қаласы 2018 жыл

The solar system

The Sun sends light to Earth from about 149.6 million kilometers away. Plants can only produce food and oxygen using energy from the Sun. Animals feed on plants and breathe oxygen to survive. This means that the Sun is a continuous source of life on Earth.

When light is given out from the Sun, it takes eight minutes and 20 seconds to reach Earth. The distance between Earth and the Sun is 149.6 million km. This distance is given the name 1 Astronomical Unit; 1 A.U.