Answer:
Galaxy > The solar system > The sun > The earth
Explanation:
A galaxy is usually defined as a large accumulation of interstellar dust and gas particles, and also includes many solar systems, the sun, the planets, and other rocky planets. The name of the galaxy comprising the earth and the sun is the Milky way galaxy. The milky way galaxy has a diameter ranging between 150,000 and 200,000 light-years.
The solar system is composed of the nine planets including the asteroid belt, that goes around the sun in different orbits. The size of the Solar System is about 287.46 billion km in terms of diameter.
The sun is located at the central portion of the solar system that is the main source of energy. Its size is roughly 695,510 km in terms of diameter.
The earth is the only planet where life exists and is the 3rd planet that is closer to the sun, having a diameter of approximately 12,742 km.
Answer: True
Refraction is a phenomenon in which the light bends or changes its direction (and changes the speed of propagation, as well) <u>when passing through a medium</u> with a refractive index <u>different from the other medium. </u>
Where the Refractive index is a number that describes how fast light propagates through a medium or material:
Being a relation between the speed of light in vacuum and its speed in the other medium
.
It is important to note that in this process, the wavelength may be modified because it depends on the medium, however, the refracted ray of light does not change its frequency.
i cant understand your question define briefly
Elements have 2 or 8 electrons on their outer shell
Give me the details of the experiment and I will be happy to help u