Question

1. after eris was discovered, scientists had to decide whether to count it as a planet. why did this make them question whether pluto should still be counted as a planet? a. because pluto and eris are both space objects b. because pluto and eris were discovered at the same time c. because pluto and eris are very different d. because pluto and eris are very similar
2. what is the main idea of this text? a. pluto was no longer considered a planet after the discovery of eris made scientists come up with new rules for what is counted as a planet. b. pluto is so far away from earth that the nasa new horizons spacecraft took almost 10 years to get very close to it. c. eris is about the same size as pluto, and like pluto, it is part of a ring of objects that circle the outer edge of the solar system. d. scientists come up with rules for what is counted as a planet and what is not.

Explanation:

1. La descubrimiento de Eris hizo que los científicos reconsideraran la clasificación de Plutón debido a su similitud con Eris, lo que los hizo cuestionar si Plutón debía seguir siendo considerado un planeta.
2. El texto se centra en cómo el descubrimiento de Eris hizo que los científicos establecieran nuevas reglas para lo que se considera un planeta y, como resultado, Plutón dejó de ser considerado como tal.

Answer:

1. D. because Pluto and Eris are very similar
2. A. Pluto was no longer considered a planet after the discovery of Eris made scientists come up with new rules for what is counted as a planet.