It absorbs CO2, It plays an important role in the heat energy balance.
1. helps transformation from gas to liquid help form latent heat (this an important source for Atmospheric energy),
2. It is also a green house that absorbs the earth outgoing radiant energy,
Answer:
Explanation:
By Winona LaDuke
It's 2016 and the weight of American corporate interests has come to the Missouri River, the Mother River. This time, instead of the Seventh Cavalry or the Indian police dispatched to assassinate Sitting Bull, it is Enbridge and Dakota Access Pipeline.
In mid-August, Standing Rock Tribal Chairman Dave Archambault II was arrested by state police, along with 27 others, for opposing the Dakota Access Pipeline. In the meantime, North Dakota Gov. Jack Dalrymple called for more police support
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.
