Answer:
Working age population declining
The number of female babies killed, abandoned, or placed in orphanages increased as a result of the policy. Even after the one-child policy was rescinded, China's birth and fertility rates remained low, leaving the country with a population that was aging too rapidly as well as a shrinking workforce
Answer: Cuenca
Explanation:Topped by attractive blue and white domes, the Catedral de la Inmaculada Concepción (the Cathedral of the Immaculate Conception) is a tourist hotspot in Cuenca, Ecuador. It took workers 100 years to construct, opening its doors for the first time in 1885.
Arid
<span>Lacking moisture, especially having insufficient rainfall to support trees or woody plants</span>
Answer:
Explanation:
The achievement of sovereignty for the Quebec state. The creation of a political and economic association between this new independent state and Canada.
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.