Answer:
Hammurabi was a great military leader in Babylon.
Explanation:
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.
Answer:
The ecosystem that consists of a producer and consumer is a decomposer
Explanation:
- The ecosystem comprises a number of producers, ad decomposers. The producers belong to the bottom of the food chain and they are divided into primary and secondary such as plants and herbivorous animals like grass and deer.
- The secondary environment consists of consumers that are also divided into primary and secondary that is wolves and Man.
- The decomposers are the last in the food chain that acts of dead and decaying reasons and converts the nutrient energy into the soil that is take up again by plants.
