It has 9 protons, 9 electrons and 10 neutrons.
An amorphous solid<span> is any noncrystalline </span>solid<span> in which the atoms and molecules are not organized in a definite lattice pattern. So amorphous solids do not </span>have a long-range order in the arrangement of their particles because their <span> formation involves very rapid cooling. Therefore, the answer would be the first option. Hope this helps.</span>
The concept to be used in order to determine the diameter of the second cell in the photograph is that of the ratio and proportion. The ratio of the first set of measurements should be proportional (equal) to the ratio of the second set.
Ratio of first set of diameters,
r = diameter of Cell A / diameter of Cell B
r = 12 micrometers/20 micrometers
r = 3/5
If we let D be the diameter of the cell B in photographs,
r = 3/5 = 15 cm/x cm
The value of x from the equation is 25. Hence, the diameter of cell B is 25 cm.
The Solar System model that changed the view of the people about the Earth and the other objects in the sky was proposed by the Polish astronomer Nicolai Copernicus in the 16th century.
Copernicus, by observing the sky and the objects on it, managed to get to a conclusion that drastically differed from the viewpoint that was in place for almost 2,000 years. He proposed that the Earth is actually not the center of the universe, but that that position is held by the Sun, while the Earth and the other planets are spinning around the Sun.
In the Solar System model we can observe the Sun as the largest object, situated in the middle, being static. All the other planets, including the Earth, are spinning around the Sun. The Moon on the other hand is spinning around the Earth, being the only object to do so, but it is also spinning around the Sun as the other objects.
Answer: Replacement means a person or thing that takes the place of another; a substitute.