Who discovered Oxygen?
- A. Dmitri Mendeleev
- B. Jonas Edward
- C. Richard Gatling
- D. Joseph Priestley
Correct Answer: D. Joseph Priestley (1774)
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Which river is called “Father of Rivers”?
- A. Indus
- B. Nile
- C. Amazon
- D. Congo
Correct Answer: A. Indus
Where can you find the so-called “Pompeii of America”?
- A. Mexico
- B. El Salvador
- C. Ecuador
- D. Peru
Correct Answer: B. El Salvador
Who invented the Ball Point Pen?
- A. John Loud
- B. Karl Landsteiner
- C. Alexander Parkes
- D. William Harvey
Correct Answer: A. John Loud
Lowari Tunnel is located in which of the following country?
- A. India
- B. Pakistan
- C. Iran
- D. None of these
Correct Answer: B. Pakistan
The first country to prepare a constitution:
- A. China
- B. USA
- C. India
- D. Germany
Correct Answer: B. USA
The first country to prepare a constitution was the USA. The constitution was adopted on September 17, 1787, and Ratification was completed on June 21, 1788. The US constitution is made of seven articles, a preamble, and a closing endorsement. the constitution also has a Bill of Rights and several amendments.
What is the name of the hot molten matter underneath solid rock?
- A. Crust
- B. Mantle
- C. Magma
- D. Spring
Correct Answer: C. Magma
Magma refers to rock that has been melted. Below the mantle lies the core. The outer core is a liquid mix of iron and nickel, but the inner core is solid metal. Sometimes, hot molten rock called Magma.