Explanation

• The first modern Olympic Games were held in Athens, Greece from April 6 to 15, 1896.
• 43 events in nine sports.
• 241 athletes from 14 nations. 
• The United States won the most gold medals (11).
• Greece won the most medals overall (47).

Last verified on 14-09-2026

Explanation

• Smallest bone: Stapes.
• Location: Middle ear.
• Three ear bones: Malleus, Incus, Stapes.
• Longest bone: Femur (thigh bone).
• Adult human skeleton: Usually 206 bones.
• Newborn: About 270 bones at birth; many later fuse together.
• Human skull: 22 bones (8 cranial + 14 facial)

Last verified on 03-09-2026

Explanation

• Ammonia is produced by the Haber process.
• The reaction is: N₂ + 3H₂ ⇌ 2NH₃.
• There are 4 moles of gas on the left and 2 moles on the right.
• Increasing pressure shifts the equilibrium toward ammonia.
• Therefore, higher pressure increases ammonia production.

Explanation

• "Angry with" is the correct preposition when referring to a person.
• "Angry at" is used for situations or things.

Last verified on 16-07-2026

Explanation

The additive inverse of a number is the value that, when added to the original number, results in zero.

For 1/7, the additive inverse is:

-1/7

Since:

1/7 + (-1/7) = 0

Last verified on 09-07-2026

Explanation

• Sublimation is the process in which a solid directly changes into a gas without passing through a liquid phase.
• This endothermic phase transition
• Occurs when a substance absorbs enough energy to overcome intermolecular forces.
• Deposition: Gas to Solid (the reverse process).
• Examples: Dry ice, iodine, frost/snow.

Explanation

• Marathon race is a long-distance running event standardized internationally.
• The official distance is 42.195 km (26.2 miles).
• Standardized at the 1908 London Olympics to start at Windsor Castle and finish in front of the royal box.
  

Last verified on 20-01-2026

Explanation

Given that A+B = 12 + B + C

=> A – C = 12 + B – B = 12

C is younger than A by 12 years.

Explanation

Magnesium Sulphate (Epsom salt) is a common laxative that helps relieve constipation by drawing water into the intestines.

It works by softening stool and promoting bowel movements when taken in proper dosage.

Explanation

Friedrich Frobel (1782–1852) was a German educator who developed the Kindergarten system.

He believed in learning through play and introduced structured activities for early childhood education.