Question Discussion & Solution

Given pair is Thing: Main element

Prime constituent of pen is Ink

Similarly, prime constituent of Cigarette is Tobacco

The correct answer is Hydrogen.

Key Points

• Hydrogen has atomic number 1 and is placed in group 1 along with alkali metals.
• It is the first element in the periodic table.

​Additional Information

• Hydrogen was discovered by Henry Cavendish.
• Hydrogen gas is called the fuel of the future.
• The most abundant element in the universe is Hydrogen.
• The most abundant element on earth's crust is Oxygen.
• Hydrogen is the 'lightest element' in the periodic table.
• Lithium is the 'lightest metal' in the periodic table.

The correct answer is 740 meters.

• The approximate height of Dhosi hill above sea level is 740 meters.

Key Points

• Dhosi hill
  • ​Dhosi Hill is an extinct volcano.
  • It is standing alone at the northwest end of the Aravalli mountain range, of which it is a part, with height varying from about 345 to 470 meters from the surrounding land.
  • It is 740 meters from sea level. 
  • Dhosi Hill is located on the borders of Haryana and Rajasthan.

Additional Information

Top 3 Major mountain peaks of the Aravali Ranges of Rajasthan:

Given word: PRIED

Meaningful 5 letter words that can be formed are: REDIP, PRIDE and RIPED.

final is used to apply restrictions on class, method, and variable. final is a keyword.

finally is used to place important code, it will be executed whether an exception is handled or not.

System is a class. finalize and main are methods.