Answer:
Your answer would be ( A star has 2 star systems )
Hope this helps have an amazing day........
The collision theory<span> is based on the assumption that for a reaction to occur it is necessary for the reacting species atoms or molecules to come together or </span>collide<span> with one another.\</span>
<span>Fossil record, genetics, and examples of local adaptations all support the theory of evolution by natural selection.</span>
they deleted my link but if u google this theres a pdf that should help