Pluto
| 25. | Until recently, Pluto was known as the ninth planet in our solar system. It was spotted and labeled as a planet in 1930. Composed __________________ of ice, Pluto was thought to be the farthest planet from the sun. | MAIN |
| 26. | In 1970, some scientists began to question whether Pluto was really a planet. As technology improved the __________________ to see the outer areas of the solar system, they found other objects like Pluto. However, they decided that these did not have enough mass, or quantity of matter, to be considered a planet. | POSSIBLE |
| 27. | In 2006, the International Astronomical Union, the group of scientists who give objects in space their __________________ classification, introduced a set of conditions that would define a planet. | OFFICE |
| 28. | There were three main qualifications, and Pluto failed to meet one of them. It did not have enough mass. Pluto was no longer a planet! Many scientists __________________ with the change. | AGREED |
| 29. | They found fault with the International Astronomical Union’s __________________ for what a planet is. | REQUIRE |
Подобные задания можно добавить в готовый типовой вариант и получить свой уникальный КИМ с ответами и критериями.