When spiral galaxies do collide, the impact is greatest on their:
A)individual stars.
B)galactic nuclei.
C)giant molecular clouds.
D)open clusters.
E)globular clusters.

Question

Quizplus · Accepted Answer

When spiral galaxies collide, the dense regions within them, such as giant molecular clouds, are most significantly affected due to their relatively large sizes and masses compared to individual stars. These clouds are the sites of star formation and can be dramatically impacted by the increased density and gravitational interactions during a collision, leading to bursts of star formation.

When Spiral Galaxies Do Collide, the Impact Is Greatest on Their