1

The Celestial Index of Exoplanets

7:00

1 / 8

Question 1

The Celestial Index of Exoplanets - Part 1: Multiple Choice Cloze

This is a C2 Proficiency practice exam for Part 1: Multiple Choice Cloze. The summary below keeps the exercise understandable, linkable, and accessible outside the interactive runner.

Reading Text

Astrobiologists at the University of Arecibo have recently unveiled an extensive celestial index, meticulously cataloguing exoplanets and moons deemed most likely to (1) _______________ extraterrestrial life forms. This comprehensive inventory was developed to provide a structured framework for analyzing the ever-increasing number of distant worlds captured by sophisticated modern telemetry. It allows astronomers to maintain rigorous (2) _______________ on the most promising candidates as new data emerges. The system evaluates viability based on three primary (3) _______________: surface temperature, terrestrial similarity, and the inherent capacity to (4) _______________ microbial organisms. Many of these biological entities typically (5) _______________ in the most extreme environmental niches. While numerous candidates are listed, only a marginal percentage are (6) _______________ habitable, and the database assigns high (7) _______________ for long-term viability to very few. Furthermore, the database provides specific details regarding the (8) _______________ of these worlds relative to their parent stars. This project represents one of the most ambitious efforts in the search for life beyond Earth.

Exam Questions Summary

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8