Тест 9

Mars is the seventh largest planet in our solar system and about half the diameter of Earth. Seasons on Mars are different from19пропуск 19, текущийon Earth. Mars is on average about 50 percent20пропуск 20from the sun than Earth is, with an average orbital distance of 142 million miles. Mars has a far21пропуск 21atmosphere than Earth, which dramatically lessens how much heat the planet can trap near its surface.