Answer:
More choices.
Explanation:
Cities are very densely populated because there are a lot of opportunities for a job. There are also plenty of places to send children to school. In bigger cities there are also more schools so if you were going to school you could have a choice on which school you wanted to go to. There would also be responses to bad weather such as a lot of snow the plows would be out or if there was an issue at home there are homes and shelters.
The answer is
the earth, rock forms, and strata
7=(-4)x+6. Hope this helps
Answer: is constant
Explanation:
In order to analyze the velocity of the stars within a galaxy, the <u>galaxy rotation curves</u> (developed by the American astronomer Vera Rubin) are used. These graphs are elaborated as a scatter diagram in which the orbital velocity of the stars present in a galaxy is represented on the Y axis and the distance of these stars to the center of the galaxy on the X axis.
Thanks to this diagram, it has been possible to observe a characteristic behavior in the rotation speed of the stars (and gas) present in the galaxies, which differs from the rules of the orbital movement of the planetary systems postulated by Newton and Kepler.
This means that in these galaxy rotation curves it has been observed that the rotation speed of stars and gas is "constant", regardless of the distance to the center of the galaxy. This discrepancy and these results were then used to demonstrate the existence of dark matter in the universe.
