Explanation

Earth's Rotation 

• - Sidereal Day: Approximately 23 hours, 56 minutes, 4 seconds.
• - Meaning: The time Earth takes to rotate once relative to distant stars.
• - Solar Day: Approximately 24 hours, measured from one noon to the next.
• - Difference: About 4 minutes.

Last updated 08 Nov 2026 by NA

Explanation

• The poles experience six months of the day and six months of the night.
• This is since earth is tilted on its axis.
• Also, due to this, each pole is tilted towards and away from the sun for about six months.
• When the North Pole is tilted towards the sun, it has continuous daylight.

Last updated 08 Nov 2026 by NA

Explanation

• The majority of nutrient absorption in the digestive system occurs in the small intestine,
• Where the final stages of digestion take place.
• This organ's structure, featuring villi and microvilli, creates a large surface area optimized for absorbing digested nutrients and most water into the bloodstream.

Last verified on 08-11-2026

Explanation

Lucknow Pact (December 1916) was an agreement between:

• Indian National Congress – headed by Bal Gangadhar Tilak
• All-India Muslim League – led by Muhammad Ali Jinnah

• Congress adopted the pact at Lucknow session on 29 December 1916.
• Muslim League approved it on 31 December 1916.

Last verified on 19-01-2026

Explanation

• Quaid-e-Azam Muhammad Ali Jinnah joined the All India Muslim League in 1913.
• He was about 37 years old when he became a member of the Muslim League.

Additional information:

• Quaid-e-Azam joined the Indian National Congress in 1906 and left it in 1920.

Last verified on 21-07-2026

Explanation

• The stomach produces Hydrochloric Acid (HCl) as part of gastric juice.
• HCl creates a highly acidic environment with a pH of about 1.5–3.5.
• It activates pepsinogen into pepsin.
• Pepsin helps break down proteins into smaller peptides.

Last verified on 03-09-2026

Explanation

• Alexander Graham Bell is credited as the inventor of the telephone.
• He was awarded the first successful patent for it.
• The telephone was invented in 1876.
• Bell made the first-ever telephone call to his assistant Thomas Watson.

Last updated by NA on 06-11-2026

Explanation

• Whales are marine mammals (Mammalia).
• It belonging to the order Cetacea.
• This also includes dolphins and porpoises.
• They breathe air, give birth to live young, and produce milk to feed their offspring, like all mammals.

Last verified on 06-11-2026

Explanation

• Wilhelm Conrad Rontgen discovered X-rays
• He was discovered on 8 November 1895.
• He got the Nobel Prize in Physics in 1901.

Additional questions

• The penetrating power of X-rays depends on their frequency

Last updated by NA on 05-11-2026

Explanation

• The average distance from the Earth to the Sun is approximately 150 million kilometers.
• It is also called 1 astronomical unit (or AU).

Last updated by NA on 04-11-2026