<h2>Answer:</h2>
<u>Ozone is produced by the </u><u>reaction of solar radiation with atmospheric oxygen</u>
<h2>Explanation:</h2>
Ozone is a special form of Oxygen which is present in the atmosphere and it protects us from dangerous ultraviolet radiations which comes from the sun. The chemical formula of ozone is O3. This gas is produced naturally in the stratosphere when some highly energetic solar radiation come from the sun and strikes molecules of oxygen present in the atmosphere and cause the two oxygen atoms to split apart in a process called photolysis.
Answer: D. The economy was struggling in much of 2009.
Explanation:
In 2009, the ownership of mp3 players seemed to dip from April to September and only recovered afterwards.
Laptop computer ownership may not have decreased but stopped growing and remained the same in the same period. Desktop computer decreased in ownership and even Cellphone ownership decreased as well.
This means that all four gadgets were affected in 2009 in a negative manner which means that the economy struggled in that time period in 2009.
<span>It is Herding and
livestock. Bringing animals together to form a herd and move from one place to
another has not been possible in south East Asia. This is because in this
region, there is difficult terrain and it’s prone to severe natural calamities
such as earthquakes. Also, the climate is not favorable for rearing livestock.</span>
<span>C.North Korea invaded South Korea to try to unify the two states.
Contrary to what the NK say today, the North Koreans invaded first
hope this helps</span>
