Answer:
B
Explanation:
the San Bushmen were are the oldest inhabitants in Africa and the term San is referred to group of hunter- gatherers
A vertical<span> market is a market where people offer goods and services to specific companies, </span>trade<span>, professions, or other group of customers with specialized needs. </span>
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>

The Correct choice is : C. <u>Solids</u>
Sound waves need a medium to propagate, and the most suitable medium for that is solids, where it travel the fastest or with greatest efficiency.
Answer:
I agree I think it is 90 :)
Explanation: