a star similar to our Sun a cloud of dust and gas an oxygen-rich atmosphere a gravitational acceleration of 9.8 m/sec2
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: A scientist is searching for areas where new solar systems might form. What feature is the scientist looking for?
Possibilities:
- a star similar to our Sun
- a cloud of dust and gas
- an oxygen-rich atmosphere
- a gravitational acceleration of 9.8 m/sec2

a cloud of dust and gas