Answer:
4. Ultraviolet radiation breaks apart molecules made up of paired oxygen atoms. Individual oxygen atoms bond with paired oxygen molecules to form ozone
Explanation:
Ozone formation in the stratosphere -
The ozone is the stratosphere layer is former naturally by the chemical reaction , with the help of the ultraviolet radiation of the sun and the oxygen molecules .
In the very first step , The UV radiation breaks the oxygen molecule to give two very reactive oxygen atoms .
In the second step , the atoms of oxygen reacts with the oxygen molecules to produce the ozone molecule (O₃) .
And Ozone gas is produced .
<h2>
Answer: The greater the distance to a galaxy, the greater its redshift
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When we talk about the visible electromagnetic spectrum, we know it starts in <u>violet-blue</u> and ends in <u>red</u>.
Now, in this context the astronomer Edwin Powell Hubble observed several celestial bodies, and when obtaining the spectra of distant galaxies he observed the spectral lines were displaced towards the <u>red</u> (red shift), whereas the nearby stars showed a spectrum displaced to the <u>blue</u>.
From there, Hubble deduced that the farther the galaxy is, the more redshifted it is in its spectrum, and noted that all galaxies are <em>"moving away from each other with a speed that increases with distance"</em>, and enunciated the now called Hubble–Lemaître Law.
This means in the past the distance between two galaxies was smaller than at present, being this the proof that <u>the universe is expanding</u> (like a balloon expands when it is filled with air or another gas).
However, at this poitn it is important to state clear that the redshift is not produced by the relative movement of the galaxies with each other. This effect is in fact, due to the own <u>expansion of the space</u> among the galaxies.
Dry and rocky desert like area
Answer:
Both of these aspects are key to understanding feudalism. Reciprocity lies in the fact that the senior party to any relationship provided land and oversight to the junior party, who in turn was expected to provide his lord with economic and military support.
Minerals are the natural resources that Israel extract from the Dead Sea.
~Happy Studying! ^_^