<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:
3 Countries with Petroleum
<em>1. Iran</em>
<em>2. Iraq</em>
<em>3. Kuwait</em>
3 Countries with Gold
<em>1. China</em>
<em>2. Russia</em>
<em>3. Australia</em>
Explanation:
1. Iraq's petroleum industry is very important for its economy. Before its <em>international embargo,</em> it became a major exporter of crude oil.
2. Iran has one of the largest petroleum reserves in the world. Just like Iraq, it also became a major exporter of crude oil. However, due to wars and sanctions, export revenue declined.
3. Kuwait is a tiny country that is <em>rich in oil.</em> It's largest industry is<em> "petroleum industry," </em>and it is owned by the government.
4. China is considered to be the<em> largest gold-producer in the world</em>. Although it only has a few gold reserves, many people are into <em>gold-mining.</em>
5. Next to China is Russia. It is second when it comes to the accumulation of gold, yet it is only in<em> 6th position</em> when it comes to gold reserve.
6. Australia is perceived to overtake China's position in the coming years as the largest producer of gold in the world. This is because of Australia's<em> cost-effective mining </em>and<u> plans for major expansion.</u>
I think it’s C I may be wrong though but I hope this helps..
Have a great day. :)
Its b i think but i might be wrong i looked it up
Overcrowding and slums developed in many impoverished countries in the 20th century, mostly due to large migrations to cities from people looking for work.