African minerals

Q. Which of the following countries in Africa contains about half the gold reserves in the world?

1. Algeria
2. Kenya
3. Ethiopia
4. South Africa

Q.

Differentiate between natural diamonds and synthetic diamonds.

Q.

How are synthetic diamonds prepared?

Q. Which country is the largest producer of manganese in the world?

1. Australia
2. South Africa
3. China
4. India

Q. Discuss the country profile of Egypt.

Q. Nearly 20% of the world's diamonds comes from Africa.

1. True
2. False

Q.

Write short answers for the following:

How can you distinguish real diamonds from synthetic diamonds?

Q. There are two kinds of diamonds: _____.

1. industrial diamonds and white diamonds
2. gem diamonds and industrial diamonds
3. industrial diamonds and synthetic diamonds
4. gem diamonds and pink diamonds

Q. Africa is the world's largest producer of _________.

1. graphite, cobalt, and diamonds
2. platinum, diamonds, and silver
3. diamonds, gold, and platinum
4. coal, thorium, and platinum