menu
Qammunity.org
Questions by Rgoal
Login
Register
My account
Edit my Profile
Private messages
My favorites
Questions by Rgoal
Ask a Question
Questions
Unanswered
Tags
Categories
Ask a Question
Questions by Rgoal
Filter
User Rgoal
Recent activity
All questions
All answers
Who first introduced the idea that the Sun is the center of the universe? A. Albert Einstein B. Edwin Hubble C. Johannes Kepler D. Nicolaus Copernicus
asked
Oct 28, 2016
Physics
high-school
2
answers
3
votes
102k
views
Page:
« prev
1
2
3
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.
9.4m
questions
12.2m
answers
Search Qammunity.org