Question

which characteristics can be used to differentiate star systems? select three options. the number of stars in the system the level of dust and gas the age of the stars in the system the way stars are organized in the system the color of stars in the system

Explanation:

Star - systems can be distinguished by the number of stars (single - star, binary - star etc.), the level of dust and gas which affects formation and evolution, and the way stars are organized (e.g., spherical clusters or open clusters). Age and color are more related to individual star characteristics rather than differentiating whole star - systems as primary factors.

Answer:

the number of stars in the system, the level of dust and gas, the way stars are organized in the system