There is a theory that gravity could pull galaxies back together, causing a reverse big bang. which observation makes this theory less likely than the idea that the universe may continue to expand? background radiation is present. galaxies exist outside of the milky way. the expansion of the universe is accelerating. gas giants form farther from the sun, where temperatures are cooler.

In fact, recent observations of the universe have shown it is expanding at an increasing speed. In other words, the universe is still growing and all the stars, planets and galaxies are separating from each other. To put it simply, in the movie Harry Potter Harry Potter and the Prisoner of Azkaban, Harry's aunt inflates like a balloon, which make her clothes to rip and stretch. The Universe is growing like Harry's aunt, and the galaxies are going away from each other, like the buttons of her dress. Thus, the right answer is: The expansion of the universe is accelerating

it should be c, women were allowed to vote in all states because federal law supersedes state law.

"states can make their own laws, as long as they don't contradict what the federal law states. the states do not have the authority to pass a law that negates a federal law." -google

intimacy, passion and commitment are the components of a interpersonal relationship emphasized in the triangular theory of love by robert sternberg.

the triangular theory of love says love can be comprehend as this componest form the vertices of a triangle.  

intimacy relates to feelings such as of closeness and connection;

passion relates the drives that brings people together, as physical attraction.

commitment relates to the being in a long-term relationship.