Author Question: In addition to asteroids, ________ impacts also provided the primitive Earth with water and ... (Read 77 times)

urbanoutfitters · **on:** Jul 27, 2018

In addition to asteroids, ________ impacts also provided the primitive Earth with water and organics.

Fill in the blank(s) with correct word

Question 2

If a star system 30 parsecs distant is found to be broadcasting intelligent radio signals, then their news is already approximately ________ years old.

A) 10 B) 30 C) 100 D) 300 E) 1,000